PRECISION
WEATHER
INSTRUMENTS
E N V I R O N M E N TA L I N F O R M AT I O N F O R H O M E & I N D U S T R Y
2 0 0 4 C ATA L O G
What’s New?
GLOBE Protocol. Students can now participate in the
worldwide GLOBE program with a new protocol developed
just for Davis. For more information, visit www.globe.gov.
Daytime Fan-Aspirated Radiation Shield Kit. Adds the
benefits of fan aspiration to your wireless or cabled Vantage
Pro or Pro Plus. See page 6.
Wireless Soil Moisture/Temperature Station. With up to
4 soil moisture sensors and 4 temperature sensors. See page 7.
WeatherLink Modules. New plug-in software modules
add e-mail and phone alerts, plus specialized reporting for
farmers, growers, and turf managers. See page 12.
S
till the best! No other weather station comes close to Vantage Pro® in
accuracy or the amount and depth of data collected. Only Vantage Pro
gives you highs and lows (and/or totals or averages) for just about all
weather variables for the last 24 days, months, or years—all without a PC!
Find out just how windy it is today compared to the last wind storm, or how
this month’s rainfall compared to last month’s. Plus, you’ll get your own local
forecast using data gathered right in your own backyard. View it all on a large
31⁄2" × 6" (9 × 15 cm) LCD screen. Add our WeatherLink data logger and
software package for even more analysis. Backlit display for easy viewing. U.S.
and metric units of measure.
WindScribe ™. Handheld wind speed meter uses patented
ultrasonic technology to measure the wind. See page 17.
Clearance Center. Discontinued models are now available
on our website at low closeout prices. Stock up now, while
supplies last. Go to www.davisnet.com.
As always, please contact one of our customer service representatives if you have any questions. We’re always glad to help.
(510) 732-9229 Main telephone line.
(510) 732-7814 For answers to technical questions or help
with trouble-shooting.
(510) 670-0589 Fax to Customer Service or Tech Support.
www.davisnet.com Visit our web site.
sales@davisnet.com E-mail to Customer Service.
support@davisnet.com E-mail to Technical Support.
info@davisnet.com General e-mail.
Inside compass rose,
view wind direction
to 1° resolution. Or
view wind speed.
Graph icon shows
which function is
currently being displayed on the graph.
Compass rose with 16
compass points shows
current and dominant
wind direction.
Set over 70 alarms
for multiple functions simultaneously.
Alarm bell indicates
that alarm is set.
Graph last 24 hours, days,
or months of readings or
highs and lows. View over
80 graphs including additional analysis of temperature, rain, rain rate, wind,
and barometric pressure.
All without a computer!
After nine years on the job, Marilyn Ivey’s
Weather Monitor II is still going strong. Marilyn
took this photo of a pyrocumulus cloud in
August, 2003. She writes: I had been watching
my anemometer all afternoon. The wind didn’t
know what to do with itself. When it swung to
the east I knew I would have to leave. Within
minutes, a fireman was in my yard saying, “Lady,
get out of here. It’s time to GO!” The fire was
eventually stopped less than 1⁄4 mile from my
home. Many people had less warning than I
did—they don’t have a Davis weather station!
Vertical scale
changes depending
on what you are
graphing.
Look for the following logos throughout the catalog:
Identifies items that use our proprietary wireless protocol. Mix
and match them to create the system that suits your needs.
Identifies the stations or sensors that are NIST-traceable. See
page 19 for details.
Identifies stations suitable for use with GLOBE protocol.
®
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Davis Instruments
Vantage Pro
View current
data or highs and
lows for up to 24
different days,
months, or years.
Forecast icons let
you know whether
to expect sun, part
sun, clouds and
rain, or snow.
Time and date fields let
you view:
• Time of sunrise and
sunset
• Current time and date
• Time and date of
highs and lows
• Time and date of
graphed data point
Eight phases of the
moon, from new
moon through full
moon.
Five-position trend
arrow shows whether barometric pressure is rising, falling,
or stable.
Fixed display
area shows the
most important
weather variables at all times.
Variable display area
lets you pick between:
• Inside or additional
temperatures or soil
moisture
• Inside or additional
humidity, UV index,
or leaf wetness
• Wind chill, dew point,
or two different heat
indices
Plus and minus
keys simplify
data entry.
View daily rain or
rain for this storm.
Umbrella icon
appears when it is
currently raining.
View monthly or
yearly rainfall, rain
rate, evapotranspiration, or intensity
of solar radiation.
Ticker-tape display shows
expanded forecast details
and additional information
on current conditions. Over
100 different messages!
Blinks to let
you know that
data is being
received.
Use arrow keys
to scroll through
data on graph or
view highs and
lows over time.
ors or stations are required to view
,
onal sens
Opti onal temperatures or humidities, soil moisture
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UV in
Davis Instruments
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Rain collector with self-emptying tipping
bucket is exceptionally accurate. Read rainfall amounts in 0.01" increments or metric
equivalent rounded to nearest 0.1 mm.
Vantage Pro
V
antage Pro® weather stations are available in both wireless and cabled versions. All include our innovative integrated sensor suite, which combines
our rain collector, temperature and humidity sensors, and anemometer all
into one package—making setup easier than ever and improving performance and reliability.
Customize your weather station by adding consoles or one or more of the special-purpose
stations shown on the following pages. Up to eight wireless transmitters may report to a single
console. Because regulations vary, wireless stations may not be available outside the USA.
Flexible mounting options let you customize
the installation to suit your needs.
Anemometer is detachable for ultimate
flexibility—mount with integrated sensor suite as shown, or mount separately
using the included 40' (12 m) cable.
Temperature and humidity sensors are
located inside the radiation shield. The
shield protects the sensors from solar
radiation and other sources of radiated and reflected heat.
Use our optional tripod to mount
the integrated sensor suite on a
rooftop . . .
. . . or in a field, with or without
the console inside our Complete
System Shelter.
Electronic components are
housed in weather-resistant
shelter for added protection
against the elements.
Wireless integrated sensor
suite runs on solar power.
Lithium battery provides
backup at night and during
cloudy, wintry days. (Solar
panel is not included with
cabled version.)
win d
tage Pro consoles use the new
n
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All formula adopted by the National
l
chil ther Service, for more accurate
a
e
W ings of how cold it really feels!
d
rea
Separate the anemometer from the
rain collector to mount it on a fence
post up to 40' (12 m) away. . .
. . . or even further with optional
Anemometer Transmitter Kit.
The GLOBE
Program
Now, with a new
®
protocol developed
just for Davis weather stations, students
from grade school through high school
can participate in the worldwide GLOBE
program by taking and reporting scientifically-valid environmental measurements. For more information on GLOBE,
visit our website or www.globe.gov.
GLOBE, The GLOBE Program, and the GLOBE logo are
trademarks of the U.S. Government. Use of these
trademarks and certification by this company that
its products conform to specifications of The GLOBE
Program do not imply endorsement of this company
or its products by the U.S. Government.
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Optional tripod makes
installation even easier.
Brackets at the base
of legs tilt to mount
on roof or uneven
terrain.
ween
Switch baetnd U.S.
c
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met
easure
units of mpush of
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a
a button!
All Vantage Pro stations include:
• Console with AC-power adapter. Wireless console
may also be run using three C batteries. Batteries
should also be added to cabled console for
backup during power outages.
• Integrated sensor suite with rain collector, temperature and humidity sensors, and anemometer.
• 40' (12 m) anemometer cable.
• Mounting hardware.
Vantage Pro Plus stations
also include:
• Solar radiation sensor.
• UV radiation sensor.
• Sensor mounting shelf.
Davis Instruments
Cabled stations
also include:
• 100' (30 m) cable from console
to integrated sensor suite.
Wireless stations
also include:
• Transmitter (in integrated
sensor suite or weatherresistant shelter) and receiver
(in console). Range is up to
400' (120 m) outdoors, line of
sight. Typical range through
walls under most conditions
is 75 to 150' (23 to 46 m).
• Solar panel and lithium battery
for powering transmitter.
Vantage Pro
B
uild your own customized weather station by adding one or more of the special-purpose stations shown on the following pages. Each Vantage Pro console/receiver can
receive data from up to eight different transmitting stations. Start with one of our wireless Vantage Pro or Vantage Pro Plus stations (which include both the console and the integrated sensor suite), and
add up to seven additional Temperature or
Temperature/Humidity
Stations. Or buy the
Vantage Pro console
alone (without the integrated sensor suite), and
add up to eight specialpurpose stations of your
choice.
Use the console on a desk . . .
MAXIMUM # of each station type. Total number of stations cannot exceed 8.
Shown on
Console
Logged by
WeatherLink
Integrated Sensor Suite
1
1
Anemometer Transmitter Kit
1
1
Leaf & Soil Moisture/Temperature
1
1
Soil Moisture/Temperature Station
1
1
Temperature Station
8
3*
Temperature/Humidity Station
8
2*
Transmitting Station
Each Vantage Pro console/receiver can
receive data from up to eight different
transmitting stations.
Vantage Pro®
* WeatherLink will log a maximum of 3 Temperature Stations or 1 Temperature Station and 2 Temperature/Humidity Stations.
age 19 for
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Vantage Pro® Plus
V
page 15 for details on U
See olar radiation sensors.
s
and
Includes all the features of Vantage Pro,
plus everything you need for reading:
• UV index and dose.
• Solar radiation.
• Evapotranspiration.
UV and solar radiation sensors are pre-installed on sensor mounting
shelf.
Our most popular station. Choose the wireless model for:
• Easiest installation.
• Ability to add additional consoles or special-purpose stations.
• Reduced risk of damage from lightning strikes.
Choose the cabled model for:
• Most economical installation.
• Field installation using our Complete System Shelter.
• Installation in areas with high RF interference.
6150 Wireless Vantage Pro
6150C Cabled Vantage Pro
. . . or mount it on a wall.
6160 Wireless Vantage Pro Plus
6160C Cabled Vantage Pro Plus
®
Davis Instruments
®
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Vantage Pro
testing, our radiation shields beat or
de-by-side
In si close to matching the performance of equivalent
e
s,
cam costing as much as seven times more. For detail
els
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ur temperature sensors have an accuracy of ± 1°F (0.5°C), and the accuracy of our outside
humidity sensors is ± 3%. In real-life situations, though, solar radiation and the reflected heat
from rooftops or pavement can result in greater variances. The radiation shields included with
our standard Vantage Pro and Pro Plus models provide considerable protection, but for even better accuracy—especially on warm, sunny days with little or no wind—choose one of our fan-aspirated stations. The motor-driven fan draws air through the
sensor chamber and exhausts it through the top of the shield. With this improved air flow comes improved temperature and humidity readings. The
effects of radiated and reflected heat are minimized, and conditions inside the radiation shield come as close as possible to the ambient air conditions.
Vantage Pro® & Pro Plus
with 24-Hour Fan-Aspirated Radiation Shield
Includes all the features of the Vantage Pro or Pro Plus station
shown on the preceding pages, plus our patented fan-aspirated
radiation shield. For the highest possible accuracy, the motordriven fan draws air through the sensor chamber, 24 hours a day,
7 days a week. Air flow across the sensors
is 500 feet per minute (2.5 m/s). At night,
when the effects of radiation are less, the
®
solar-powered model runs on battery
power and the air flow is 280 feet per minute (1.4 m/s).
6151 Wireless Vantage Pro with Solar-Powered Fan-Aspirated Radiation Shield
6151C Cabled Vantage Pro with AC-Powered Fan-Aspirated Radiation Shield
6161 Wireless Vantage Pro Plus with Solar-Powered Fan-Aspirated Radiation Shield
6161C Cabled Vantage Pro Plus with AC-Powered Fan-Aspirated Radiation Shield
New!
24-Hour Fan-Aspirated
Radiation Shield
Motor-driven fan draws air
through the sensor chamber.
Wireless
Temperature/Humidity
Station with 24-Hour FanAspirated Radiation Shield
Daytime Fan-Aspirated Radiation Shield Kit
An economical solution for adding the benefits of fan aspiration
to your wireless or cabled Vantage Pro or Pro Plus. Half the cost of
our other fan-aspirated radiation shields, but nearly 75% as effective in reducing the effects of daytime radiation. Solar-powered
fan runs during the day. Since there is no backup battery, the fan
will cease running when night falls and the effects of radiation are
less. Kit includes fan, solar panel, additional radiation shield plates,
and hardware, as shown in inset photo. Larger photo shows the
kit as installed on a wireless Vantage Pro. For use with later-model
Vantage Pro or Pro Plus stations with round radiation shield plates;
not for use with earlier models with rectangular plates.
7745 Daytime Fan-Aspirated Radiation Shield Kit
6
Solar-powered station includes
temperature and humidity sensors
inside fan-aspirated radiation shield.
Electronic components and battery are
housed inside weather-resistant shelter
for added protection against the elements. To view the data, add a wireless
Vantage Pro console/receiver, Weather
Echo or Echo Plus, or
Weather Envoy and
WeatherLink.
6385 Wireless Temperature/Humidity Station
with Fan-Aspirated Radiation Shield
Davis Instruments
“
Sending kudos regarding
your radiation shield. I bought a
competing company’s wireless
station a year and a half ago.
The large problem I had with
the station was that I could not
get any type of precision in
measuring the ambient outside
temp. After a summer of moving
the sensor here and there, I was
still left scratching my head at
the data most of the time. With
your radiation shield I’ve been
collecting consistent, believable temps throughout the fall
months. Thank you for a product
that does what is advertised.
Ethan, Carson City, NV
”
Vantage Pro Options
New!
Wireless
Wireless
Solar-powered station includes transmitter and battery inside weather-resistant shelter. Sensors are not included; you add the ones you
need to match your specific requirements. Add up to 2 leaf wetness
sensors, 3 soil moisture sensors, and/or 3 temperature probes. To view the data, add a wireless
Vantage Pro console/receiver or Weather Envoy
and WeatherLink.
Solar-powered station includes transmitter and battery inside weatherresistant shelter. Includes one Watermark® soil moisture sensor and
one stainless steel temperature probe. Add up
to 3 more of each, for a total of 4 soil moisture
®
sensors and 4 temperature probes. To view
For teachers participating in the
the data, add a wireless Vantage Pro console/ GLOBE program, see the special
receiver or Weather Envoy and WeatherLink. protocol developed for this station
6343 Wireless Leaf & Soil Moisture/Temperature Station
6361 Wireless Soil Moisture/Temperature Station
Leaf & Soil Moisture/Temperature Station
Soil Moisture/Temperature Station
at www.globe.gov, or visit our website at www.davisnet.com/links.
Leaf Wetness Sensor
Use to monitor the level of surface
moisture on foliage, with range from 0
(completely dry) to 15 (saturated). Add up to 2
sensors to a single Wireless Leaf & Soil Moisture/
Temperature Station. Includes 40' (12 m) cable.
6420 Leaf Wetness Sensor
Soil Moisture Sensor
Watermark® soil moisture sensor uses electrical resistance to measure the moisture level of
the soil. Does not require periodic maintenance
during the growing season. Simply bury at the
desired depth, then monitor moisture levels
throughout the season. Add up to 3 sensors to a
single Leaf & Soil Moisture/Temperature
Station or Soil Moisture/Temperature
Station. Includes 15' (4.6 m) cable.
Wireless
Wireless
with Standard Radiation Shield
Battery-powered station includes stainless steel temperature probe with 12'
(2.6 m) cable, transmitter and battery
inside weather-resistant shelter, and
mounting hardware. To view the data,
add a wireless Vantage Pro console/
receiver, Weather Echo
or Echo Plus, or Weather
Envoy and WeatherLink.
Battery lasts up to one
year under normal conditions.
6440 Soil Moisture Sensor
6370 Wireless Temperature Station
6470 Stainless Steel Temperature Probe
Temperature/Humidity Station
Battery-powered station includes temperature and humidity sensors, transmitter, and
lithium battery inside protective radiation
shield. Battery lasts up to one year under
normal conditions. To view the data, add
a wireless Vantage Pro console/receiver,
Weather Echo or Echo
Plus, or Weather Envoy
and WeatherLink.
6380 Wireless Temperature/Humidity Station
with Standard Radiation Shield
Temperature Station
Davis Instruments
®
Stainless Steel
Temperature Probe
Multi-purpose temperature probe with 21/2"
(64 mm)-long stainless steel housing. Use
to measure temperature of air, soil, or water.
Add up 3 probes to a single Leaf & Soil
Moisture/Temperature Station or Soil Moisture/
Temperature Station. Includes 15' (4.6 m)
direct-burial cable.
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®
Vantage Pro Options
W
ireless Weather Echo and Echo Plus receive and display data from
any of our wireless transmitters. Compact design fits easily on
desk, countertop, or table—even in your shirt pocket. Selectable
ID code matches one of eight possible transmitting stations. Change the code
to display data from a different transmitter, or add additional Weather Echos
or Echo Pluses to display data from more than one transmitter. Range is up to
400' (120 m) outdoors, line of sight. Typical range through walls under most
conditions is 75 to 150' (23 to 46 m). U.S. and metric units of measure.
View current data, today’s highs and lows, or
highs and lows for each of the last 7 days
Current wind speed
or the average for
the last minute
Outside
temperature
Receive data directly from Vantage Pro integrated sensor suite . . . .
Forecast lets you
know whether
to expect sun,
rain, clouds, or a
combination.
Both Weather Echo
and Weather Echo Plus
have their own inside
temperature sensors
. . . or retransmit from wireless
Vantage Pro console/receiver.
Wind direction
Weather Echo™
Includes console with inside temperature sensor,
adjustable stand for use on desk or shelf, wall-mount
bracket, and three-volt lithium battery. Battery lasts
up to one year under normal conditions.
Daily and
total rainfal
Blinks to let you know that
data is being received.
Barometric pressure,
current time, or date
of highs and lows.
Inside or outside
humidity, dew point,
or wind chill.
7602 Weather Echo
Weather Echo Plus™
Includes all the features of Weather Echo plus
backlit display for easy viewing and inside humidity sensor. AC-power adapter allows continuous
use of backlighting.
7603 Weather Echo Plus
Solar Powered
AC-Powered
Wireless Repeaters
Anemometer Transmitter Kit
Solar-powered kit for use with wireless Vantage Pro or Vantage Pro
Plus. Allows you to locate the anemometer independently from the
rain collector, up to 400' (120 m) away from the console/
receiver. For longer distances, add one or more wireless
repeaters. Kit includes transmitter inside weather-resistant
shelter, solar panel, battery, and mounting hardware.
6330 Anemometer Transmitter Kit
8
For longer distances or to improve reception in troublesome areas, add one
or more wireless repeaters. Range is up to 400' (120 m) outdoors, line of
sight. Typical range through walls under most conditions is 75 to 150' (23 to
46 m). Use up to eight repeaters with a single wireless station, or form a network of weather stations by linking eight repeaters to eight different wireless
stations. AC-powered model includes power adapter. Solar-powered model
includes solar panel, regulator circuit, and rechargeable battery.
7624 Wireless Repeater, AC-Powered
7625 Wireless Repeater, Solar-Powered
Davis Instruments
Vantage Pro Options
R
eceive data from a Vantage Pro integrated sensor suite or specialpurpose station, and post it to your computer—no console
required! Weather Envoy, when used along with WeatherLink,
will collect and store data from the outdoor sensors. Download to
your computer at your convenience, then use the WeatherLink
software to view current conditions, graph and chart historical data, or even create your own weather web pages.
Weather Envoy™
6314 Wireless Weather Envoy
6314C Cabled Weather Envoy
Requires WeatherLink data logger and
software package (not included).
A cabled Weather Envoy can be used
with ONE of the following:
Receive data
directly from
the outdoor
sensors—no
console
required!
Install wireless or cabled
Weather Envoy in your
home or office, next
to your computer for
easy and convenient
downloading.
6325 with Standard Radiation Shield
Shown with
Weather Envoy includes its own barometer and inside
WeatherLink
temperature and humidity sensors. Both the wireless
data logger
installed.
and cabled versions include an AC-power adapter.
Either may also be run using one of our solar power
kits. The wireless model may also be run using three
AAA batteries. Batteries will last up to six months, depending on the logging interval. Batteries should
also be added to the cabled model for backup during power outages.
• Cabled Integrated Sensor Suite, or
• Cabled Integrated Sensor Suite Plus
Cabled Home/Office Station
A wireless Weather Envoy can be used
with ALL of the following:
• One wireless Integrated Sensor Suite or Integrated
Sensor Suite Plus
• One Anemometer Transmitter Kit
• One Leaf & Soil Moisture/Temperature Station or one
Soil Moisture/Temperature Station
Wireless Home/Office Station
• Three Temperature Stations or one Temperature Station
and two Temperature/Humidity Stations.
Integrated Sensor Suite
For use with Weather Envoy and
WeatherLink. Includes all the features of
the Vantage Pro or Pro Plus integrated sensor suites shown on pages
4-6. Tripod not included.
Wireless Integrated Sensor Suite
6320 with Standard Radiation Shield
6321 with Solar-Powered Fan-Aspirated Radiation Shield
Cabled Integrated Sensor Suite
6320C with Standard Radiation Shield
6321C with AC-Powered Fan-Aspirated Radiation Shield
Wireless Integrated Sensor Suite Plus
6325 with Standard Radiation Shield
6326 with Solar-Powered Fan-Aspirated Radiation Shield
Cabled Integrated Sensor Suite Plus
Use Weather Envoy with a wireless or cabled field station.
Cabled Field Station.
With Multi-Purpose Shelter and 7707 Solar Power Kit.
Wireless Field Station.
Run on batteries or add our 6610 Solar Power Kit.
Or use in addition to a wireless Vantage Pro console/receiver.
Transmit to Both Simultaneously
6325C with Standard Radiation Shield
6326C with AC-Powered Fan-Aspirated Radiation Shield
Retransmit Data to Weather Envoy
Retransmit from Weather Envoy
Davis Instruments
Vantage Pro Console/Receiver
To view data from a wireless Vantage Pro
station in additional locations, or for use
with any of the specialpurpose wireless stations
shown on the previous
pages. Includes all the features shown on
pages 2-3.
6310 Vantage Pro Console/Receiver
9
GroWeather & Perception II
O
ur GroWeather stations provide a wealth of special-purpose information related to
agricultural needs. Using the information from GroWeather, you can:
• Conserve water resources by irrigating at optimal times.
• Optimize the timing of planting, fertilizing, pesticide application, and harvesting.
• Keep an eye on the level of heat stress on workers and livestock.
• Monitor the potential fire hazard due to temperature and wind
conditions along with the moisture loss of nearby vegetation.
For a customized station designed to suit your needs, add
our GroWeatherLink computer interface package or any
of the sensor and mounting options described on the
pages to follow.
GroWeather®
Includes console, AC-power adapter, and
sensor interface module. Optional sensors
let you build your own customized system.
To monitor conditions at a field site, add a radio
or cell phone modem and a GroWeatherLink/ET Data
Logger. To modify irrigation scheduling according to real-time ET
data, add our Alarm Output Module.
7450 GroWeather
For these special GroWeather functions:
Add these optional sensors:
Evapotranspiration
ET Data Logger, Anemometer, Solar Radiation Sensor, and
Temperature/Humidity Sensor
Growing degree-days with user-settable thresholds
Temperature or Temperature/Humidity Sensor
Soil temperature in addition to air temperature *
A second Temperature Sensor or Probe
Surface moisture on foliage *
Leaf Wetness Sensor
Apparent temperature (temperature-humidity index)
Temperature/Humidity Sensor
* Soil temperature and leaf wetness use the same port. To measure both, switch from one sensor to the other as needed. Measure soil
temperature to determine the proper time for planting, then switch to the Leaf Wetness Sensor for the rest of the year.
EZ-Mount GroWeather®
Includes everything found on our basic GroWeather, plus
ET data logger and all optional sensors. Sensors are preassembled on a galvanized steel mounting pole. Radiation
shield protects temperature/humidity sensor from solar
radiation and other sources of radiated and reflected heat.
Weather-resistant shelter protects the sensor interface
module from the elements. Locate the console inside the
shelter, or run the included 100' (30 m) cable to locate the
console indoors. See page 16 for optional Solar Power Kit
and Mounting Tripod.
7450EZ EZ-Mount GroWeather
Includes 0.01" Rain Collector. Add the suffix M for 0.2 mm Rain Collector.
Alarm Output Module
To send signals to automatically start or stop external devices such as irrigation systems, heaters, or fans, add our Alarm
Output Module. The Alarm Output Module can directly
control devices such as irrigation controllers and thermostats. To switch power to heaters, motors, or other highpower equipment, you will need to add electrical relays (not
available from Davis Instruments). For complete details, ask
for a copy of our supplement on the Alarm Output Module.
7736 Alarm Output Module
By adding the Alarm Output Module to
GroWeather you can:
Perception II®
An indoor weather station requiring no installation—just plug it in using the included AC-power
adapter. Use to monitor your wine cellar, greenhouse, or other climate-dependent area. Measures
temperature, humidity, and barometric pressure. So
accurate, it’s even used by automobile racers to tune
their carburetors for current air density conditions.
Backlit display for easy viewing.
• Select up to four alarm conditions for output.
• Select high and low alarms for the same weather parameter.
• Select alarms from two different weather parameters.
By adding GroWeatherLink you can also:
• Turn remote devices on or off from your keyboard.
• Write your own software program to turn devices on or off.
• Switch power to a radio on and off to conserve energy.
10
7400 Perception II
Davis Instruments
Weather Wizard III & Monitor II
O
ur Weather Wizard III and Weather Monitor II offer sophisticated, professional quality for home, business, or scientific use. Add WeatherLink for
detailed, long-term analysis using your PC, and you’ll have a powerful
s
pages 14–15 for detail
computer weather station at a surprisingly affordable price.
See tional sensors.
p
on o
Weather Monitor II®
Weather Wizard III®
A full-featured weather station. Basic
model includes barometric pressure, inside and outside temperature,
inside humidity, wind speed and direction, and wind chill. With the
complete station, you’ll also get outside humidity, dew point, and daily
and accumulated rainfall.
The most-requested features at an economical price. Basic model
includes inside and outside temperature, wind speed and direction, and
wind chill. With the complete station, you’ll also get daily and accumulated rainfall.
7440 Weather Monitor II
Includes 0.01" rain collector. Add the suffix M for 0.2 mm rain collector.
7440CS Complete Weather Monitor II
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Optional
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Optional
Optional
EZ-Mount
GroWeather
Optional
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GroWeather
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Complete
Weather Monitor II
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Weather Monitor II
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Complete
Weather Wizard III
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Weather Wizard III
Perception II
age 19 for
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Barometric Pressure
Inside Temperature
Outside Temperature
Soil or Water Temperature
Wind Direction
Wind Speed
Wind Chill
Wind Run
Rainfall
Inside Humidity
Outside Humidity
Dew Point
Temperature-Humidity Index
Evapotranspiration
Growing Degree-Days
Leaf Wetness
Solar Radiation Intensity
Solar Energy
7425CS Complete Weather Wizard III
®
Includes 0.01" rain collector. Add the suffix M for 0.2 mm rain collector.
Choose the
station that
suits your
needs
7425 Weather Wizard III
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
®
Protected Junction Box
Provides upgraded protection against the electrical disturbances that can come through sensor
cables, including radio frequency interference,
electrostatic discharges, and voltage surges.
Includes two 16' (5 m) ground wires. For use with
Weather Monitor II or Weather Wizard III only.
For GroWeather, equivalent protection is already provided by the sensor interface module.
7740 Protected Junction Box
All stations include
the following
features:
All stations include
the following
components:
• Time in 12- or 24-hour format
and date.
• Console with reversible base
for use on desk, shelf, or wall.
• U.S. and metric units of measure.
• Backlighting of LCD display
for easy viewing (except
Weather Wizard III).
• Highs and lows.
• Sequential scan and display of
readings.
• Alarms for selected functions.
• Calibration of some functions
for increased accuracy under
difficult conditions.
Davis Instruments
• AC-power adapter with
battery backup (battery not
included).
• Quick and easy plug-in cable
connections using modular RJ
connectors like those found
on your telephone.
Wizard & Monitor
stations also include:
• Junction box with 8' (2.4 m)
cable to connect sensor cables
to console.
GroWeather stations
also include:
• Sensor interface module with
16' (5 m) ground wire and 8'
(2.4 m) cable to connect sensor cables to console. Provides
increased protection against
radio frequency interference,
electrostatic discharges, and
voltage surges.
11
Computer Interfaces
F
or the ultimate in weather monitoring, add WeatherLink to any of our weather stations.
The data logger fits neatly into the weather station console or Weather Envoy, storing
weather data even when it’s not connected to your PC. Later, download the data and
use the software for detailed analysis and graphing.
New Features
See current conditions at a glance on the instant
weather bulletin.
Our latest versions of WeatherLink include a host of
new and improved features.
• Weather Forecast. Lets you know what to expect,
with quick-view icons for the forecast at a glance
and text messages for expanded details.
• Moon Phase. With eight phases of the moon, from
new moon through full moon.
• Updated Wind Chill. Uses the new formula
adopted by the National Weather Service
which incorporates modern heat transfer
theory and a lower calm wind threshold.
In Salt Point, New York, the whole family enjoys watching the
weather—including daughter Cheryl, age 10.
Expanded Reporting
• Expanded Temperature Reporting. Heating
degree days, cooling degree days, and fueloil demand.
• Optional Sensor Reporting. Evapotranspiration, leaf wetness, soil moisture, soil
temperature, sunburn risk for each skin type,
and solar energy.
• Weather Watcher Reports in NOAA
National Climatic Data Center format.
Sharing Your Weather Data
Actual screens may vary.
Graph data on a daily, weekly, or yearly basis.
View multiple weather variables at the same time to
see their relationships.
WeatherLink makes it easy for you to participate
in a number of worthwhile programs including:
• The Citizen Weather Observer Program. Your
data, submitted via APRS or the Internet, can
help the National Weather Service develop
Weather Website
improved weather prediction models. See
Create your own weather website or
www.wxqa.com.
post weather conditions to a LAN.
• The GLOBE Program. An internaUse our included HTML temtional weather-related science proplates or design your own. Add
®
gram for students from elementary
graphs, text lines, or scrolling
Pro
Vantagegger
through high school, supported by NASA and
ticker tapes, and upload other
o
L
Data
NSF. See www.globe.gov.
files (such as images from a webcam)
• The Weather Underground. Submit your data
along with your weather data.
via the Internet, and it will appear whenever anybody checks the forecast for your
Data Storage & Transfer
zip code. See www.wunderground.com.
• Choose a storage interval of 1, 5, 10, 15, 30, 60, or 120 minutes.
• Weather World ’Round. Send your
• Store up to 6 months of data before downloading, depending on the storage interval. (Up
URL to news@davisnet.com and
to 4 months for Perception, Wizard, or Monitor; up to 85 days for GroWeather.)
we’ll add it to our growing list of
• Download automatically every day, or download manually whenever you like.
• Export data to most popular spreadsheet, database, and word processing programs.
Davis stations around the world. See
www.davisnet.com/links.
Agricultural/Turf Management Module
Optional software module adds specialized reports for farmers, growers, and turf managers. With a user-defined 24-hour period and growing season, you can track the
weather according to your needs, not the calendar’s. You’ll get evapotranspiration,
chilling requirement, leaf wetness hours, and soil temperature hours—all with user-entered thresholds and
starting and ending dates. Plus growing degree-days
and temperature-humidity hours (with user-entered
names of crops, pests, or diseases) and crop water
management (with irrigation values and user-entered
K-factor profiles). For use with WeatherLink models 6510C or 7862. Some reports require the use of
optional sensors. For owners of GroWeather who
wish to upgrade to Vantage Pro, includes the ability to
import files from GroWeatherLink.
6511 Agricultural/Turf Management Module
12
New!
On his 1400-acre corn and soybean farm in Iowa, Al Schafbuch
uses WeatherLink to track degree days and rainfall.
Davis Instruments
E-Mail/Phone Alert Module
Be alerted whenever conditions
approach critical—24 hours a day,
7 days a week. Choose e-mail for
detailed information on alarm
conditions, plus regularly scheduled
updates on current weather conditions.
Or choose the phone alert, with a special alarm tone alerting you to check
your weather station or WeatherLink
for more details. (Because systems
vary, the phone alert may not work
outside the USA). Optional software
module for use with WeatherLink
models 6510C or 7862.
6512 E-Mail/Phone Alert Module
Computer Interfaces
All versions include:
for WeatherLink for Vantage Pro
7862
WeatherLink for Perception, Wizard, or Monitor
7855
•
•
Extra User License Kit
7862X 7855X
for WeatherLink for Perception, Wizard, or Monitor
7871H
(included with 7450EZ)
7871S
English-Language Version
7871PS
Portuguese/Spanish Version
7871X
for GroWeatherLink
GroWeatherLink/ET Data Logger
GroWeatherLink Software
Extra User License Kit
New!
Use to download data from a
WeatherLink data logger
into your Palm™ Pilot
or compatible PDA, for
later transfer to your PC.
Kit includes 9-pin cable adapter
and software on CD. Requires Palm OS
3.5.1 to 4.1 and serial interface. For use with
WeatherLink model 6510C only.
6538 WeatherLink Downloader
USB to
Serial Cable
The WeatherLink data logger connects to a serial port on your PC.
To connect to the USB, add our
USB-to-Serial Cable. For use with
Windows 98/ME/XP/2000 or Mac OS X.
8434 USB to Serial (DB9) Cable
Telephone Modem Adapter
For transmission of data from any of our
WeatherLink data loggers
using a modem.
Telephone Modem Adapter
6533 for Vantage Pro
7870 for all other stations
7450 and 7450EZ
GroWeather
7440 and 7440CS
Weather Monitor II
7425 and 7425CS
•
•
Multiple stations: Track multiple
stations on the same computer using
one WeatherLink for each station.
Multiple computers: View data from
the same weather station on multiple
computers using one Extra User
License for each computer. Includes
license, manual, and software.
Mac versions do NOT include the data
sharing, weather website, or other new
features listed on the opposite page.
•
•
•
•
•
•
GroWeatherLink Software
WeatherLink Downloader
Weather Wizard III
7400
•
•
Perception II
•
•
6314C
•
•
6314
•
•
6310
•
•
6150, 6151, 6160, and 6161
Cabled Weather Envoy
6510X 6520X
Cabled Vantage Pro
Extra User License Kit
Wireless Weather Envoy
WeatherLink for Vantage Pro
Wireless Console/Receiver
6510C 6520C
Mac versions require Mac OS X v 10.1 or above
and USB serial adapter.
• Software on CD (except 31⁄2" disk for
GroWeatherLink).
• Data logger (sold separately for
GroWeatherLink).
• 8' (2.4 m) cable to connect the data logger to your computer.
Wireless Vantage Pro
Windows versions require Windows 95/98/ME/NT4.0/
XP/2000, at least 5MB free hard disk space, 4MB RAM,
one free serial port, and CD-ROM.
For Mac
For Windows
Although the 6510C and 7862 software features are identical, the data
loggers are different and are not interchangeable. The software for the Mac
versions and GroWeatherLink vary somewhat; see the sidebar on the right.
6150C, 6151C, 6160C, and 6161C
Match your weather station to one
of these versions of WeatherLink.
GroWeatherLink includes the
agricultural/turf reports sold separately for other WeatherLinks (see 6511
on opposite page). It also includes a
phone/pager alert and the weather
website features. It does NOT include
the features listed under New Features
or Sharing Your Weather Data.
Short-Range Modem Pair
Vantage Pro Updater
Take advantage of the latest developments with our
Vantage Pro Updater. Simply plug the Updater into
the expansion port on your Vantage Pro console
(where the WeatherLink data logger plugs in), and
press the start button. The console will be automatically updated with the latest version of the firmware. Future updates may be downloaded from our
website at no charge.
6311 Vantage Pro Updater
Also available on loan for one-time use at a reduced cost. Contact our
Customer Service or Tech Support Department for details.
Link Isolator Kit
For upgraded protection against
electrical disturbances, install the
Link Isolator between the data logger
and your computer. Includes 40' (12 m) cable
and power adapter. For use with WeatherLink
models 7862 or 7855 only. For other models,
equivalent protection is already provided.
7764 Link Isolator Kit
Davis Instruments
For transmission of data from a
WeatherLink data logger over twisted-pair
cable. Use for distances up to four miles (6.4
km) over 22-gauge (0.3 mm 2) cable or up
to seven miles (11 km) over 19-gauge (0.7
mm 2) cable. Adapter is included; cable is
not. Mac users require additional adapter.
Not for
use with
Vantage Pro.
7875 Short-Range
Modem Pair
7869 Mac Adapter for 7875
Radio
Communication
To access data from
remote weather stations without running
wires. Choose spread
spectrum for distances up to 10 miles
(16 km), UHF radio for distances up to 25
miles (40 km), or cellular phone for virtually unlimited range. For complete details,
ask for our catalog supplement, Radio
Communication Options.
13
Sensor Options
Leaf Wetness Sensor
Anemometer
To indicate the presence of surface moisture on foliage with
range from 0 to 15.
Includes both wind speed and wind direction sensors. Rugged components stand up
to hurricane-force winds, yet are sensitive
to the lightest breeze. Wind-tunnel tested
to speeds in excess of 170 miles per hour.
Sealed stainless steel ball bearings for long life. Comes complete
with mounting hardware.
6420 Leaf Wetness Sensor for Leaf & Soil Moisture/Temperature Station
Includes 40' (12 m) cable. Extension cables may not be used with this station.
7846 Leaf Wetness Sensor for GroWeather
Includes 40' (12 m) cable. Use Standard 6-Conductor Extension Cable. Maximum cable length is 125' (38 m) from
sensor to sensor interface module.
7878-040 Cable, 40' (12 m)
7911 Anemometer for GroWeather
a complete
e “Options & Accessories” chart on page 20 for
h
t
e
e
S
n.
t which options may be used with which statio
look a
Includes 40' (12 m) cable. Use Standard 4-Conductor Extension Cable. Maximum cable
length is 250' (76 m) from anemometer to sensor interface module.
7876-008 Cable, 8' (2.4 m)
7876-100 Cable, 100' (30 m)
7876-040 Cable, 40' (12 m)
7876-200 Cable, 200' (60 m)
Sensor
Mounting Arm
Solar Radiation Sensor
Anemometer
Rain Collector
Rain Collector Shelf
Side mount
Top mount
Leaf Wetness
Sensor
Anemometer Mast Mount
Used for special mounting situations such as sailboat mastheads. Not
required for most installations. Brackets attach to virtually any surface—
vertical or horizontal, curved or flat—and allow adjustment to level.
7890 Anemometer Mast Mount
Radiation Shield
Complete System Shelter
Rain Collector
Designed to meet the guidelines of the World
Meteorological Organization, our self-emptying tipping-bucket design is exceptionally accurate.
Choose 0.01" or 0.2 mm increments.
7852 Rain Collector, 0.01" for Wizard, Monitor, or GroWeather
7876-008 Cable, 8' (2.4 m)
Add the suffix M for 0.2 mm Rain Collector. Includes 40' (12 m) cable. Use Standard 4-Conductor Extension Cable.
Maximum cable length is 900' (270 m) from rain collector to Wizard or Monitor console (including junction box cable)
or GroWeather sensor interface module.
7876-040 Cable, 40' (12 m)
7876-100 Cable, 100' (30 m)
7876-200 Cable, 200' (60 m)
Solar Power Kit
Temperature
Sensor & Probe
Use to measure air, soil, or water temperature. Sensor features black UVstabilized plastic sheath. Probe features
21/2" (64 mm)-long stainless steel housing.
6470 Temperature Probe for Leaf & Soil Moisture/
Temperature Station
Includes 25' (7.6 m) cable. Extension cables may not be used with
this station.
7817 Temperature Sensor for Wizard, Monitor, or
GroWeather
7818 Temperature Probe for Wizard, Monitor, or
GroWeather
Rain Collector Shelf
Both include 25'(7.6 m) cable. Use Standard 4-Conductor Extension
Cable. Maximum cable length is 300' (90 m) from sensor to console
(including junction box or sensor interface module cable).
7876-008 Cable, 8' (2.4 m)
7876-100 Cable, 100' (30 m)
7876-040 Cable, 40' (12 m)
Provides a horizontal surface for
mounting the Rain Collector.
May be used with Sensor
Mounting Arm or mounted
on other structures or surfaces.
Aluminum shelf is white powder coated for added durability.
Rain Collector Heater
For use in cold climates to measure freezing rain or the
moisture content of snowfall. Requires access to AC
power; may not be run using a solar power kit. Includes
24-watt, 24-volt heater with thermal cut-off switch,
control unit, insulating reflective blanket, and ACpower adapter.
The most effective passive shelter available. Protects temperature sensor from solar radiation
and other sources of radiated
and reflected heat. Multi-plate construction
for maximum airflow. Assembly required.
7704 Rain Collector Shelf
7720 Rain Collector Heater
7714 Radiation Shield
for Wizard, Monitor, or GroWeather, or for Wireless
Temperature Station or Leaf & Soil Moisture/Temperature
Station
Includes 50' (15 m) cable. Use Shielded 4-Conductor Extension Cable. Maximum cable length is
120' (36 m).
7895-050 Cable, 50' (15 m)
7895-100 Cable, 100' (30 m)
14
Davis Instruments
Radiation Shield
Sensor Options
Solar Radiation Sensor
To measure solar radiation and solar energy. Diffuser
element and housing are carefully designed for accurate cosine response. Silicon photo diode provides
good match to solar spectrum. Two-piece housing
minimizes radiation heating, allows convection cooling of the sensor, and prevents the trapping of water or dust.
6450 Solar Radiation Sensor for Vantage Pro
Includes 3' (0.9 m) cable. Use Standard 4-Conductor Extension Cable. Maximum cable length is 125' (38 m)
from sensor to integrated sensor suite.
7821 Solar Radiation Sensor for GroWeather
Includes 40' (12 m) cable. Use Standard 4-Conductor Extension Cable. Maximum cable length is 125' (38 m)
from sensor to sensor interface module.
7876-008 Cable, 8' (2.4 m)
7876-040 Cable, 40' (12 m)
7876-100 Cable, 100' (30 m)
Meteorologists at Patriot Hills, Antarctica, installed a Davis weather station to keep an eye on
conditions at the local airstrip. For more on this story, visit www.thistle.org/ANI/.
UV Sensor
Complete System Shelter
Measures the sunburning portion of the UV spectrum.
Allows you to display UV index, dose rate, and daily and
accumulated dose. Multi-layer filter provides a spectral response that closely matches the Erythema Action
Spectrum. Diffuser provides excellent cosine response.
Two-piece housing minimizes radiation heating, allows convection cooling of the sensor, and prevents the trapping of water or dust.
To locate your station console and
other components outside, at a field
or remote location. Weather-resistant
NEMA 4X enclosure provides protection from the elements for any of
the following:
• Vantage Pro console or
console/receiver with WeatherLink
Complete System Shelter with console,
sensor interface module, short-range
data logger.
modem, and alarm output module.
• Weather Wizard III or Weather
Monitor II console with WeatherLink data logger, protected junction box, radio communication option (short-range modem, spread
spectrum radio modem, or cellular phone modem), regulator circuit
from solar power kit, and 7.0-amp-hour battery.
• GroWeather console with GroWeatherLink data logger, sensor interface module, alarm output module, radio communication option
(short-range modem, spread spectrum radio modem, or cellular
phone modem), regulator circuit from solar power kit, and 7.0-amphour battery.
Measures 151/2" × 73/4" × 131/2" (395 × 195 × 345 mm).
6490 UV Sensor for Vantage Pro
Includes 3' (0.9 m) cable. Use Standard 4-Conductor Extension Cable. Maximum cable length is 125' (38 m)
from sensor to integrated sensor suite.
7876-008 Cable, 8' (2.4 m)
7876-040 Cable, 40' (12 m)
7876-100 Cable, 100' (30 m)
7724 Complete System Shelter
Multi-Purpose Shelter
Sensor Mounting Shelf
For mounting Vantage Pro UV and/or solar radiation sensors. Powdercoated aluminum shelf with anodized aluminum posts and stainless
steel hardware attaches easily to outside of integrated sensor suite.
6672 Sensor Mounting Shelf
Temperature/Humidity Sensor
Measures outside temperature, relative humidity, and dew
point. When used with Weather Monitor II, it replaces the
external temperature sensor included with the station.
7859 Temperature/Humidity Sensor for Monitor or GroWeather
Includes 40' (12 m) cable. Use Standard 6-Conductor Extension Cable. Maximum cable length is
125' (38 m) from sensor to console (including junction box or sensor interface module cable).
7878-040 Cable, 40' (12 m)
Use to shelter any of the following sub-systems:
• Weather Envoy with WeatherLink data logger.
• Weather Wizard III or Weather Monitor II console with WeatherLink data logger, protected
junction box, link isolator, and short-range
modem.
Multi-Purpose Shelter with
• GroWeather console with GroWeatherLink data alarm output module and
sensor interface module.
logger and short-range modem.
• GroWeather sensor interface module with Alarm Output Module.
• Spread spectrum or UHF radio modem with timer.
Measures 33/4" × 91/2" × 121/2" (95 × 240 × 320 mm).
7728 Multi-Purpose Shelter
Sensor Mounting Arm
For use with Weather Wizard III, Weather Monitor II,
or GroWeather. Aluminum arm is white powder coated for added durability. Includes mounting hardware and ground wire.
7702 Sensor Mounting Arm
Davis Instruments
15
In Guaymas, Mexico, researchers put together
a Davis station that will be used to study the
effects of wind and currents in coastal lagoons.
Installation Options
Solar Power Kit
Mounting Tripod
for Wireless Vantage Pro
or Wireless Weather Envoy
Optional tripod makes installation even easier. Brackets at
the base of legs tilt to mount on
roof or uneven terrain. Made of
galvanized steel. Includes
two 363/8" (0.92 m)-long
poles, which may be used
separately or together to
make a single 693/4" (1.77
m)-long pole.
Powers the wireless console/receiver
or Weather Envoy. (Outdoor sensors
are powered by the solar panel that is
included with the station.) Includes
solar panel, regulator circuit, rechargeable battery, and 20' (6 m) cable.
6610 Solar Power Kit for Wireless Vantage Pro
7716 Mounting Tripod
Solar Power Kit
for Cabled Vantage Pro,
Cabled Weather Envoy,
or EZ-Mount GroWeather
Powers both the console (or Weather
Envoy) and the outdoor sensors.
Includes solar panel, regulator circuit,
rechargeable battery, and 16' (4.9 m)
cable. For far northern or southern latitudes or areas with limited sunlight, add
the Add-On Solar Panel.
7707 Solar Power Kit for Cabled Vantage Pro or EZ-Mount GroWeather
7705 Add-On Solar Panel
Solar Power Kit
for Standard Weather Wizard III,
Weather Monitor II, or GroWeather
Mounting Pole Kit
Powers both the console and the outdoor
sensors. Generates enough power to run
the station under most low-light conditions. After one hour of bright sunlight, will supply sufficient energy to
run the station for 16 hours in total
darkness. Dual-bracket design provides stability in winds up to 140 mph (225 km/hr). Includes 10-watt solar
panel, regulator circuit, and battery mounting bracket. Use with our
7.0-Amp Hour Battery or other battery of your choice.
7708 Solar Power Kit for Standard Weather Wizard III, Weather Monitor II, or
GroWeather
7.0-Amp-Hour Battery
For use with our 7708 Solar Power Kit.
When fully charged, the battery will run the
system for eight days at 68°F (20°C) or five
days at -4°F (-20°C).
7711 7.0-Amp-Hour Battery
Car/Boat/RV Lighter Cord
For powering any of our weather station consoles or console/receivers. Plugs directly into
the cigarette lighter in your car, truck, RV, or boat.
Replaces the AC-power adapter that is included with
the station. Includes 8' (2.4 m) cable.
6604 Car/Boat/RV Lighter Cord for Vantage Pro
7873 Car/Boat/RV Lighter Cord for Wizard, Monitor, or GroWeather
16
Optional Mounting Pole Kit includes two galvanized steel poles, connector, and mounting hardware. Poles measure 191/2" (0.50 m) and 21" (0.53
m) long. Assemble the two together to make a single 371/2" (0.95 m) long
pole. Outside diameter is 15/16" (33 mm).
7717 Mounting Pole Kit
Grounding Kit
When suitable ground is not available, use our Grounding
Kit with any of the following: sensor interface module,
Protected Junction Box, Sensor Mounting Arm,
Complete System Shelter, Multi-Purpose Shelter,
or Surge Protector Shelters. Includes two 32"-long
× 5/8"-diameter (81 cm × 16 mm) copper-clad grounding rods, coupler for
joining the two rods together, and wire clamp.
7780 Grounding Kit
Weather Forecasting Card
Discusses the use of wind direction, barometric pressure, and cloud type in predicting the weather. Includes full list of radio
weather stations for official broadcasts,
plus key information on storm warnings,
hurricane avoidance, navigating in fog
and other hazardous conditions, and more.
Weatherproof high-strength plastic, full color both sides. Punched for
binder or bulkhead mounting. Dimensions: 81/2" × 11" (216 × 279 mm).
131 Weather Forecasting Card
Davis Instruments
Installation Options
Surge Protector
WindScribe™
For upgraded protection against
lightning-induced power surges,
power-cross conditions, and
ground potential rises, use Surge
Protectors with any of our cabled
weather stations. For installation
on cable runs between:
• Sensor and junction box or
sensor interface module.
• Console and junction box or sensor interface module.
Use one surge protector for every two wires. See the
chart below to determine the number of surge protectors needed for your installation. Stripping of wires is
required. For additional protection options, see our
Protected Junction Box (page 11) and Link Isolator
Kit (page 13).
Ultrasonic wind meter uses patented
technology to read current wind
speed, highest positive speed
(headwind), lowest negative
speed (tailwind), 5-second average, and running average. Select
from mph, km/h, fpm, m/s, f/s,
or knots, plus temperature and
wind chill in tenths of °F or °C.
Sensitive to breezes as low as 0.4 mph,
yet withstands winds as high as 150 mph.
Includes replaceable 3-volt lithium battery.
Battery lasts up to 600 hours. Dimensions:
5" × 3" × 3/4" (12.7 × 7.6 × 1.9 cm).
Weight: 31/2 oz (100 grams).
New!
276 WindScribe
7767 Surge Protector
Use Three Ways
Use 1 Surge Protector for every 2 Wires
Number of
Product #
Description
6150C
Cabled Vantage Pro
4
2
6160C
Cabled Vantage Pro Plus
4
2
7911
Anemometer
4
2
7846
Leaf Wetness Sensor
3
1.5
7852
Rain Collector
2
1
7821
Solar Radiation Sensor
3
1.5
7817
Temperature Sensor
2
1
7818
Temperature, Stainless Steel Probe
2
1
Hand-Held Wind Speed Indicators
7859
Temperature/Humidity Sensor
5
2.5
n/a
Junction Box or Sensor Interface Module
8
4
For instantaneous wind speed readings, where you need them, when you need
them. Rugged, high-impact plastic with corrosionresistant components, protective vinyl case, and
attached wrist lanyard.
Wires
Surge Protectors
Handheld with adjustable
lanyard.
Tripod mount with 1/4" thread.
Mounting bracket with Velcro®
strap.
Wind Wizard™
Reads wind speed in miles/hour, meters/second, and
Beaufort. Readout dial is supported on sapphire jewel
bearings and steadied by a rare-earth magnetic dampening system. Folding handle quickly and securely
latches into place. No batteries needed. Dimensions:
35/8" × 27/8" × 1" (92 × 73 × 25 mm) with handle folded.
Weight: 2.5 oz (71 g).
281 Wind Wizard
Surge-Protector Shelters
Turbo Meter™
Weather-resistant shelters for Surge Protectors (sold separately). Small shelter houses up to two Surge Protectors;
large shelter houses up to twelve. Includes ground wire.
Small shelter measures 31/2" × 53/4" × 21/4" (90 × 145 × 55
mm). Large shelter measures 33/4" × 91/4" × 121/2" (90 ×
235 × 320 mm)
Reads wind speed in miles/hour, knots, feet/minute, or
meters/second. Turbine suspended on sapphire jewel
bearings responds to the lightest of winds. Three-digit
display offers excellent viewing contrast in bright sunlight or at night. Requires three AAA alkaline batteries
(not included). Dimensions: 45/8" × 25/8" × 11/8" (118 × 66
× 30 mm). Weight: 3 oz (85 g) not including batteries.
7768 Small Shelter
7769 Large Shelter
271 Turbo Meter
Davis Instruments
17
Installation Diagrams
Wireless Vantage Pro
Anemometer Transmitter Kit
Anemometer
Anemometer
Anemometer
Transmitter Kit
Integrated Sensor Suite
Remote Anemometer
Cabled Vantage Pro Plus
Integrated
Sensor Suite
Integrated Sensor Suite
AC Power
Adapter
AC Power
Adapter
Integrated
Sensor Suite
Console/Receiver
Comprehensive GroWeather System
Weather Monitor II Installation
External
Temp/Humidity
Sensor
Console
Console
Console/Receiver
Solar Radiation
Sensor
WeatherLink for Vantage Pro
Anemometer
Vantage Pro Console
Rain Collector
(optional)
Anemometer
Power Adapter
Temperature
Sensor
9-Pin Connector
(DB-9)
External
Temperature
Sensor or Probe
Console
Leaf
Wetness
Sensor
Rain
Collector
To WeatherLink
(optional)
Temp/Humidity
Sensor
(optional)
Junction Box
Outdoors
Sensor Interface Module
Indoors
Alarm Output Module at Sensor Interface Module
GroWeather
Console
Data Logger
Battery Cover
8' Cable
Optional 40' (12 m) 4-Conductor
Cable & Coupler
Power
Adapter
Link Isolator Kit Installation
Wireless Weather Envoy
Alarm Output Module
Sensors
Serial Port
Sensor
Interface
Module
Power
Adapter
WeatherLink
PC Adapter
Standard 6-Conductor Cable
(2' included)
Fan
Heater
Sprinkler
Standard 8-Conductor Cable
(8' included)
User-Provided
9-Pin Connector
(DB-9)
Console
Weather Envoy
with WeatherLink
data logger
40' Cable
Link Isolator
Power
Adapter
WeatherLink Data Logger
Relay or
Control
Circuits
Optional 40' (12 m) 4-Conductor
Cable & Coupler
Console (Perception II,
Weather Wizard III, or
Weather Monitor II)
AC Power
Adapter
Field System with Solar Power, Radio, and Antenna
WeatherLink with Short-Range Modem Pair
Anemometer
Sensor Mounting Arm
Twisted Pair Cable
(not included)
WeatherLink Data
Logger (installed
inside Weather
Station Console)
Short-Range
Modem Adapter
Short-Range Modem
Short-Range Modem
Serial Port
Radio Antenna
Complete
System Shelter
Field Station with Solar Power and Soil Moisture
Leaf & Soil Moisture/
Temperature Station
Wireless
Console/Receiver
in Complete
System Shelter
Anemometer
Rain Collector
Solar Radiation Sensor
Leaf Wetness Sensor
Rain Collector
Shelf
Temp/Humidity Sensor with Radiation Shield
Solar
Power Kit
Multi-Purpose
Temperature Probe
Alarm
Output
Module
Console
Sensor Interface Module
M-P-S
Heater
Grounding Kit
Temp/Humidity Sensor
with Radiation Shield
Radio
7.0-Amp-Hour Battery
Alarm
Output
Module
GroWeather Console
with Data Logger
Sensor Interface Module
Multi-Purpose Shelter
Soil
Moisture
Sensor
18
Regulator
Circuit
Field Interface Installation
Sensor Mounting Arm
Integrated
Sensor Suite
Solar Radiation
Sensor
Standard 8-Conductor
Cable (8' included)
Solar Panel
Heater Control Unit
Shielded 2-Twisted Pair Cable
to M-P-S Heater (100' max.)
Davis Instruments
Power
Adapter
Power
Adapter
Grounding Kit
Included Cable Length
Wizard, Monitor, & GroWeather
Vantage Pro
Wireless Vantage Pro
Cabled Vantage Pro
Maximum Cable Length
540' (165 m) from anemometer to integrated sensor suite.
   
40' (12 m)
540' (165 m) from anemometer to integrated sensor suite.
   
Vantage Pro
   
8' (2.5 m)
48' (14.6 m) from data logger to computer.
 
Solar Radiation Sensor
3' (0.9 m)
125' (38 m) from solar radiation sensor to integrated sensor suite.
  
UV Sensor
3' (0.9 m)
125' (38 m) from solar radiation sensor to integrated sensor suite.
  
Weather Wizard III
8' (2.4 m)
125' (38 m) from junction box to console.
   
Weather Monitor II
8' (2.4 m)
125' (38 m) from junction box to console.
   
Protected Junction Box
None
200' (60 m) from Protected Junction Box to console.
   
Remote Display Unit
8' (2.4 m)
200' (60 m) from Protected Junction Box to console.
WeatherLink Windows or Mac
8' (2.4 m)
50' (15 m) from data logger to computer.
7895-100 Shielded 4-Conductor, 100' (30 m)
In the USA, the National Institute
of Standards & Technology (NIST)
develops and maintains the
standards of measurement to
which all others are ultimately
traced. Numerous calibrations,
tests, and measurement assurance
programs are delivered directly
to about 10,000 companies. From
these companies, NIST-traceable
intermediate service providers are
the next link in a network that
joins together the makers and
users of precision instruments.
Davis Instruments is proud to
participate in this network. Each
of our weather stations is carefully
manufactured in our California
factory. For those users who
require NIST-traceability, certification and recertification of new
and previously owned sensors is
now available. Call, fax, or e-mail
us for complete details.
   
 
GroWeather
8' (2.4 m)
125' (38 m) from sensor interface module to console.
Anemometer
40' (12 m)
See note above.
Leaf Wetness
40' (12 m)
125' (38 m) from sensor to sensor interface module.
Rain Collector
40' (12 m)
Wizard or Monitor: 900' (270 m) from rain collector to console,
including cable from junction box to console. GroWeather: 900'
(270 m) from rain collector to sensor interface module.
   
Solar Radiation
40' (12 m)
125' (38 m) from sensor to sensor interface module.
   
Temperature Sensor
25' (7.6 m)
300' (91 m) from sensor to console, including cable from junction box
or sensor interface module to console.
   
Temperature Probe
25' (7.6 m)
300' (91 m) from sensor to console, including cable from junction box
or sensor interface module to console.
   
Temp/Humidity Sensor
40' (12 m)
300' (91 m) from sensor to console, including cable from junction box
or sensor interface module to console.
Rain Collector Heater
50' (15 m)
120' (36 m) from power unit to AC-power adapter. Requires terminal block.
Console
LCD Display
ISS: Anemometer Side
ISS: Rain Collector Side with Standard Radiation Shield
ISS: Rain Collector Side with Fan-Aspirated Radiation Shield
Leaf & Soil Moisture/ Temperature Station
Temperature Station
Temperature/Humidity Station with Std Radiation Shield
Temp/Humidity Station with Fan-Aspirated Radiation Shield
Console
LCD Display
Junction Box (Wizard & Monitor)
Sensor Interface Module (GroWeather)
EZ-Mount Sensor Array
7895-050 Shielded 4-Conductor, 50' (15 m)
7959 Eight-Pin Cable Coupler
7880-100 Standard 8-Conductor, 100' (30 m)
7880-050 Standard 8-Conductor, 50' (15 m)
7880-025 Standard 8-Conductor, 25' (7.5 m)
7878-040 Standard 6-Conductor, 40' (12 m)
100' (30 m) 1000' (300 m) from console to integrated sensor suite.
WeatherLink for Vantage Pro
   
   
Inches
9 1/2 × 6 × 11/2
6 × 31/2
141/2 × 51/4 × 171/2
11 × 9 × 131/2
13 × 9 × 20
5 × 23/8 × 7
5 × 23/8 × 7
81/4 × 71/4 × 73/4
91/2 × 113/4 × 14
51/4 × 57/8 × 3
41/4 × 13/4
31/4 × 17/8 × 7/8
53/4 × 53/4 × 11/4
18 × 91/2 × 331/2
Millimeters
240 × 150 × 38
150 × 90
370 × 130 × 445
280 × 230 × 340
330 × 230 × 510
130 × 60 × 180
130 × 60 × 180
210 × 185 × 197
240 × 300 × 355
133 × 150 × 76
108 × 45
82 × 48 × 22
145 × 145 × 32
457 × 240 × 850
Anemometers are wind-tunnel tested in
our California factory.
NIST-Traceable Sensors
Extension Cable to Use
40' (12 m)
Station Dimensions
Wiz, Mon, Gro
7876-200 Standard 4-Conductor, 200' (61 m)
For Wizard and Monitor, maximum wind speed reading decreases as length of cable from anemometer to
console (including junction box cable) increases. At
140' (42 m), maximum speed is 175 mph (78 m/s). At
240' (73 m), maximum is 140 mph (62 m/s). At 340'
(103 m), maximum is 70 mph (31 m/s). The accuracy
of the reading below the maximum is not affected. For
GroWeather, maximum cable length is 250' (76 m) from
anemometer to sensor interface module. Maximum
speed is 175 mph (78 m/s) throughout this length.
7876-100 Standard 4-Conductor, 100' (30 m)
Anemometer
Standard 4- and 6-conductor
cables include waterproof
coupler kits for joining two
cables together, indoors or
out. To join standard 8-conductor cables, use an 8-pin
cable coupler (for indoor use
only). All cables may also be
joined using Surge Protectors.
7876-040 Standard 4-Conductor, 40' (12 m)
Cable Connections
7876-008 Standard 4-Conductor, 8' (2.4 m)
Extension Cables


 
Weather Club E-Newsletter
Interested in learning more about our stations? Sign up for our Weather
Club e-newsletter at www.davisnet.com/links. It’s chock full of interesting
stories, tips on maintenance and installation, and timely reminders. And
it’s delivered right to your PC every month.
Estimated
Current Draw &
Battery Life*
Current Draw
in milliamperes
Backup Battery Life in Days
with
data logger
80-Amp Car
Battery Life
at normal
temperatures
lights off
lights on
without
data logger
0.6
80
365
365
> 5 years
Cabled Vantage Pro
Console & Sensors
8
88
27
27
14 mo.
Perception II
7
127
2.5
1.0
6 to 9 mo.
Weather Wizard III
6
n/a
3.0
1.5
6 to 9 mo.
Wireless Vantage Pro
Console/Receiver
Weather Monitor II
7
127
2.5
1.0
6 to 9 mo.
GroWeather
22
140
0.7
0.7
6 to 9 mo
* Actual battery life will vary depending on station setup and usage.
Davis Instruments
19
Installation & Mounting Options
Power
Computer Interface
Sensors
20
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7450EZ EZ-Mount GroWeather
7450 GroWeather
7440CS Complete Weather Monitor II
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7440 Weather Monitor II
7425CS Complete Weather Wizard III
7425 Weather Wizard III
7400 Perception II
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6161C w/ Fan-Aspirated Rad Shield
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6160C Vantage Pro Plus
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6151C w/ Fan-Aspirated Rad Shield
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6150C Vantage Pro
6385 with Fan-Aspirated Rad Shield
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6380 Temperature/Humidity Station
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6370 Temperature Station
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Cabled
6361 Soil Moisture/Temperature Station
6161 with Fan-Aspirated Rad Shield
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6343 Leaf & Soil Moisture/Temp
6160 Vantage Pro Plus
6310 Vantage Pro Console/Receiver
6314 Wireless Weather Envoy
6330 Anemometer Transmitter Kit
7602 Weather Echo
7603 Weather Echo Plus
7624 Wireless Repeater, AC Power
7625 Wireless Repeater, Solar Power
7911 Anemometer
6420 Leaf Wetness Sensor
7846 Leaf Wetness Sensor
7852 Rain Collector II
6440 Soil Moisture Sensor
6450 Solar Radiation Sensor
7821 Solar Radiation Sensor
6470 Temperature Probe, Stainless
7818 Temperature Probe, Stainless
7817 Temperature Sensor
7859 Temperature/Humidity Sensor
6490 UV Sensor
6510C WeatherLink for Vantage Pro for PC
6520C WeatherLink for Vantage Pro for Mac
7862 WeatherLink for Windows
7855 WeatherLink for Mac OS X
7871H GroWeatherLink/ET Data Logger
7871S GroWeatherLink Software
7802 WeatherLink Toolbox
7861 WeatherTalker
7764 Link Isolator Kit
6533 Telephone Modem Adapter
7870 Telephone Modem Adapter
7875 Short-Range Modem Pair
6604 Car/Boat/RV Lighter Cord
7873 Car/Boat/RV Lighter Cord
6610 Solar Power Kit
7707 Solar Power Kit
7708 Solar Power Kit
7736 Alarm Output Module
7890 Anemometer Mast Mount
7780 Grounding Kit
7716 Mounting Tripod
7717 Mounting Pole Kit
7740 Protected Junction Box
7714 Radiation Shield
7704 Rain Collector Shelf
7720 Rain Collector Heater
6672 Sensor Mounting Shelf
7702 Sensor Mounting Arm
7767 Surge Protector
7768 Surge Protector Shelter, Small
7769 Surge Protector Shelter, Large
7724 Complete System Shelter
7728 Multi-Purpose Shelter
7745 Daytime Fan-Aspirated Radiation Shield
6151 with Fan-Aspirated Rad Shield
Wireless
Options
&
Accessories
6150 Vantage Pro
Wireless
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Dimensions
Inches
9 1/ 2 × 6 × 1 1/ 2
5 × 2 3/ 8 × 7
3 5/ 8 × 6 3/ 8 × 1 1/ 8
5 1/ 4 × 2 1/ 4 × 7/ 8
5 1/ 4 × 2 1/ 4 × 7/ 8
5 × 2 3/ 8 × 7
5 × 2 3/ 8 × 7
181/2 × 71/2 × 21/4
2 × 3 1/ 2 × 1/ 2
2 × 3 1/ 2 × 1/ 2
83/4 diameter × 91/2
7
/8 diameter × 2
2 × 2 3/ 4 × 2 1/ 4
2 × 2 3/ 4 × 2 1/ 4
1
/4 diameter × 2
1
/4 diameter × 2
1
/4 diameter × 11/4
3 1/ 2 × 3 1/ 4 × 1 1/ 4
2 × 2 3/ 4 × 2 1/ 4
1 1/ 8 × 1 3/ 8 × 5/ 8
1 1/ 8 × 1 3/ 8 × 5/ 8
4 1/ 4 × 1 3/ 4 × 1/ 2
4 1/ 4 × 1 3/ 4 × 1/ 2
4 1/ 4 × 1 3/ 4 × 1/ 2
n/a
n/a
5 1/ 2 × 4 1/ 4 × 3/ 4
3 1/ 2 × 2 1/ 2 × 1
1 3/ 4 × 2 1/ 4 × 1/ 2
1 3/ 4 × 2 1/ 4 × 1/ 2
2 1/ 2 × 1 1/ 4 × 3/ 4
3
/4 diameter × 31/4
3
/4 diameter × 31/4
5 × 2 3/ 8 × 7
33/4 × 91/2 × 121/2
101/2 × 161/2 × 1
5 3/ 4 × 5 3/ 4 × 1 1/ 4
3 × 1 1/ 2 × 1 3/ 4
5
/8 diameter × 64
30 × 33 × 52
15
/16 diameter × 371/2
5 3/ 4 × 5 3/ 4 × 1 1/ 4
7 1/ 2 × 8 1/ 2 × 6
10 × 83/4 × 31/2
4 × 2 1/ 4 × 3/ 4
2 × 9 × 3/32
32 × 2 × 73/4
1 1/ 2 × 1 1/ 2 × 1 1/ 4
3 1/ 2 × 5 3/ 4 × 2 1/ 4
33/4 × 91/4 × 121/2
151/2 × 73/4 × 131/2
151/2 × 73/4 × 131/2
Millimeters
240 × 150 × 38
130 × 60 × 180
93 × 162 × 30
132 × 57 × 22
132 × 57 × 22
130 × 60 × 180
130 × 60 × 180
470 × 190 × 120
50 × 90 × 13
50 × 90 × 13
165 diameter × 240
22 diameter × 50
50 × 70 × 57
50 × 70 × 57
6 diameter × 50
6 diameter × 50
6 diameter × 32
90 × 83 × 38
50 × 70 × 57
30 × 35 × 15
30 × 35 × 15
108 × 45 × 13
108 × 45 × 13
108 × 45 × 13
n/a
n/a
140 × 108 × 20
90 × 65 × 25
45 × 57 × 13
45 × 57 × 13
65 × 32 × 20
20 diameter × 83
20 diameter × 83
130 × 60 × 180
95 × 240 × 318
267 × 420 × 25
145 × 145 × 32
75 × 38 × 45
16 diameter × 1625
762 × 838 × 1320
33 diameter × 950
145 × 145 × 32
190 × 215 × 152
255 × 222 × 90
102 × 57 × 20
50 × 228 × 2
813 × 50 × 197
38 × 38 × 32
88 × 145 × 55
95 × 235 × 318
395 × 197 × 343
395 × 197 × 343
Humidity
Barometric Pressure
Agricultural
U.S.A. Units
GroWeather
Weather Monitor II
Weather Wizard III
Perception II
Function
Vantage Pro
Sensor Accuracy, Resolution, and Range
Rainfall
Solar & UV
Temperature
Time/Date
Range
Accuracy ±
Resolution
Range
Accuracy ±
5%
Rounded to nearest 0.1
mm from measurement
in 0.01" increments
Day: to 999.9 mm
Month: to 1999.9 mm
Year: to 1999.9 mm
5%
Day: 0.1 D-Day
Avg: 0.1 D-Day
Total: 1 D-Day
Day: to 220 D-Days
Avg: to 220 D-Days
Total: to 19,999 D-Days
Evapotranspiration


0.01"
Day: to 99.99"
Month: to 199.99"
Year: to 199.99"
Growing Degree-Days


Day: 0.1 D-Day
Avg: 0.1 D-Day
Total: 1 D-Day
Day: to 400 D-Days
Avg: to 400 D-Days
Total: to 19,999 D-Days
Leaf Wetness

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Soil Moisture

Barometric Pressure
(Elevation range:
-1000' to +12,500';
-300 to +3800 m)






Three-Hour Trend


0 to 15
0 to 200 cb
0.01" Hg
26" to 32" Hg
Slow ≥ 0.02" Hg

One-Hour Trend
1
1 cb
0.5
0.03" Hg

Rapid ≥ 0.06" Hg





Change ≥ 0.02" Hg
1
0 to 15
1 cb
0 to 200 cb
0.1 mm Hg
660 to 810 mm Hg
0.8 mm Hg
0.1 mb
880 to 1080 mb
1.0 mb
0.1 hPa
880 to 1080 hPa
1.0 hPa
Slow ≥ 0.5 mm (0.7 mb)
5-Position Arrow
Rapid ≥ 1.5 mm (2 mb)
Change ≥ 5 mm
3-Position Arrow
(0.7 mb, 0.7 hPa)
0.5
5-Position Arrow
3-Position Arrow
Inside Humidity

1%
10% to 90%
5%
1%
10% to 90%
5%
Outside Humidity



1%
0% to 100%
3%
1%
0% to 100%
3%
Dew Point



1°F
–105° to +130°F
3°F
1°C
–76° to +54°C
1.5°C
0.01"
Day: 0 to 99.99"
Storm: 0 to 99.99"
Month: 0 to 199.99"
Year: 0 to 199.99"
4%
Rounded to nearest 0.1
mm from measurement
in 0.01" increments. At
or above 2000 mm,
rounded to 1 mm.
Day: 0 to 9999 mm
Storm: 0 to 9999 mm
Month: 0 to 19,999 mm
Year: 0 to 19,999 mm
4%
0.01"
Day: 0 to 40.95"
Total: 0 to 99.99"
4%
0.2 mm
Day: 0 to 819 mm
Total: 0 to 9999 mm
4%

Rainfall



Rate of Rainfall


0.01"
0 to 99.99"/hr
5%
Rounded to 0.1 mm
0 to 1999.9 mm/hr
5%
Solar Radiation


1 W/m2
0 to 1800 W/m2
5%
1 W/m2
0 to 1800 W/m2
5%
Solar Energy


Console: 0.1 Ly
Console: 1999.9 Ly
5%
PC: 0.1 J/cm2
PC: 1999.9 J/cm2
5%
UV Dose

0.1 MEDs
0 to 199 MEDs
5%
0.1 MEDs
0 to 199 MEDs
5%
UV Index

0.1
0 to 16
5%
0.1
0 to 16
5%
Inside Temperature

Outside Temperature







0.1°F
32° to 140°F
1°F
0.1°C
0° to 60°C
0.5°C
0.1°F
–40° to +150°F
1°F
0.1°C
–40° to +65°C
0.5°C
Soil or Water Temperature


1°F
–40° to +150°F
1°F
1°C
–40° to +65°C
0.5°C
Outside Temp-Hum Index


1°F
–40° to +135°F
3°F
1°C
–40° to +57°C
1.5°C
Temp-Hum-Sun-Wind Index

Wind Chill




1°F
–90° to +135°F
4°F
1°C
–68° to +64°C
2°C
1°F
–110° to +130°F
2°F
1°C
–79° to +54°C
1°C
12 hours
8 sec/mo
1 minute
24 hours
8 sec/mo
day/month
Time





1 minute
Date





month/day
Sunrise & Sunset




1°
Wind Direction
Wind
Resolution
Metric Units

1 minute
8 sec/mo
8 sec/mo
1 minute
0° to 360°
7°
1°
0° to 360°
7°


10°
0° to 360°
7°
10°
0° to 360°
7°
Compass Rose




22.5°
16 compass points
7°
22.5°
16 compass points
7°
Wind Speed




1 mph
1 knot
2 to 150 mph
2 to 130 knots
5%
0.1 m/s
1 km/hr
1 to 67 m/s,
3 to 241 km/hr
5%
Direction of High Speed


22.5°
16 compass points
7°
22.5°
16 compass points
7°

0.1 mile
0 to 1999.9 miles
5%
0.1 km
0 to 1999.9 km
5%
Wind Run
 Included
 Optional, shown on console
 Optional, requires WeatherLink
Unless listed separately, accuracy, resolution, and range are shown for Vantage Pro stations (except for Growing Degree-Days and Solar Energy, which are shown for GroWeather). The specifications for Perception II, Weather Wizard III, Weather Monitor II, and GroWeather may be somewhat different. For complete specifications, visit our website at www.davisnet.com/links.
Davis Instruments
21
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SPECIAL ALARMS
UV MEDs
UV Radiation
Temp-Hum-Sun-Wind
Temperature (Extra)
Solar Radiation
Soil Moisture
Leaf Wetness
Humidity (Extra)
Evapotranspiration
Direction of High Speed
Wind Direction
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AVERAGES
TOTALS
EOP
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HIGHS
About Our
Cover
WITH OPTIONAL SENSORS
15 1 50 10 10 10 10 1 10 10 10 21/2 21/2 21/2 1 50 621/2 621/2 50 10 10 50 50
min min sec sec sec sec sec min sec sec sec sec sec sec hour sec sec sec sec sec sec sec sec
CONSOLE DISPLAYS
Reading at end of update interval
Total amount for the interval
Average reading for the interval
High reading for the interval
SET ALARMS for
Special Alarms
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 
High Reading
Low Reading
DISPLAYED but not graphed
Current Year High
Current Year Low
GRAPHED & DISPLAYED for last 24 of each of the following
End-of-15-Minute Period Readings
End-of-Hour Period Readings
15-minute Period Totals
Hourly Totals
Daily Totals
Monthly Totals
Storm Totals (with start & end date)
Yearly Totals
10-Minute Averages
Hourly Averages or Dominant
Daily Averages or Dominant
Monthly Averages or Dominant
Yearly Averages
One-Minute Highs
Hourly Highs
Daily Highs
Monthly Highs
Yearly Highs
Hourly Lows
Daily Lows
Monthly Lows
Yearly Low
LOWS
WIND
Wind Speed
Wind Chill
Heat Index
Outside Temperature
Inside Temperature
TEMPERATURE
Rain Rate
Rainfall Amount
Dew Point
Outside Humidity
Inside Humidity
RAIN
Rain Storm Amount
BAR
Barometric Pressure
Update Interval
HUMIDITY
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In the tiny village of
Massimeno, high in
the Italian Alps, Andrea
Toffaletti’s Vantage Pro
weather station reports
data to the community’s
website and to MeteoNetwork, a nonprofit
Italian meteorological
association.
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You can find out more
about Massimeno and
view the “meteo on line”
at www.massimeno.net.
For more on
MeteoNetwork, visit
www.meteonetwork.it.
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 Storm Warning: Amount of barometric pressure fall.
Storm Clearing: Amount of barometric pressure rise.
 Rainstorm Alarm: Rainfall amount for current storm.
 Daily Evapotranspiration Amount Alarm
 Flash Flood Warning: 15-minute rainfall amount.
24-Hour Rain Alarm: 24-hour rainfall amount.
 10-Minute Average Wind Speed Alarm
 Daily UV Dose Alarm
Update interval may vary depending on station ID and type of station. Details and specifications subject to change at any time without notice.
Davis Hat
Warranty
Now you can get
your own Davis
hat! Baseballstyle cap is 100%
cotton twill. Two-toned with washed khaki
crown, dark-colored brim, and embroidered Davis logo. Self-fabric closure with
brass buckle. One size fits all.
We warrant our products to be free of defects in material and workmanship for one year from date of original purchase. While
we make every effort to carefully manufacture our products to the highest standards of quality, occasionally parts may be
found to be missing, defective, or damaged. If you have a defective part, return the product to us, shipping charges prepaid.
Include proof of purchase and a written explanation of the trouble. During the warranty period, we will, at our option, either
repair or replace the product free of charge. This warranty does not cover damage due to improper installation or use, lightning,
negligence, accident, or unauthorized service, or to incidental or consequential damages beyond the Davis products themselves.
Implied warranties are limited in duration to the life of this limited warranty. Some states do not allow limitations on how long
an implied warranty lasts, or the exclusion or limitation of incidental and consequential damages, so the above limitation may
not apply to you. This warranty gives you specific legal rights. You may have other rights, which vary from state to state.
Details, specifications, and prices are subject to change at any time without notice.
PR725 Davis Hat
22
Davis Instruments
Things to consider when
Purchasing an Electronic Weather Station
1. What weather variables are
measured and recorded?
Most other stations offer barometric pressure, outside humidity and dew point, daily
and yearly rainfall, wind speed and direction, wind chill, and outside temperature.
Some also offer inside temperature and
humidity, and a few even give you extra
outside temperature readings and current
rain rate. Only Vantage Pro gives you all
these, plus:
• Additional Rainfall Information: 15-minute rainfall, hourly and monthly rainfall,
and rainfall amounts for each of the last
24 storms.
• Additional Wind Speed Information:
10-minute average wind speed, direction
of high speed, and 10-minute dominant
wind direction.
• Apparent Temperature: Heat index (the
combined effects of temperature and
humidity) and, with the addition of a
solar radiation sensor, temperaturehumidity-sun-wind index.
• Optional Sensors for Solar and UV
Radiation, something that’s becoming
more important as we become increasing
aware of the dangers to health caused by
excessive exposure to the sun.
• Additional Information (with optional
sensors) for agricultural users: evapotranspiration, leaf wetness, soil moisture,
and soil temperature.
2. How easy is it to set up ?
With most of the competing stations, you
need to install each sensor separately,
which adds complication and takes time
and effort. Our Vantage Pro® weather stations are designed to make setup as easy as
possible. The Integrated Sensor Suite is factory-assembled. Just complete a few minor
assembly steps, insert the battery, and then
you’re ready to mount the sensors. Mount
them all together using our optional tripod,
or detach the anemometer to mount it
separately. Flexible mounting options make
it easy, either way.
3. What is the maximum
transmission distance?
The wireless transmission range for most
of the competing stations is generally quite
limited. Although transmission range is
highly variable (depending not only on the
surrounding physical features of the land and
structures but also on the RF interference in
the area), our Vantage Pro weather stations
will almost always out perform the competition. And—unlike the competition—we
offer wireless repeaters should you wish to
extend the range.
4. How many highs and lows are
measured and recorded?
Most other stations simply give you the
current readings. If highs and lows are
available at all, they are usually quite limited. Only Vantage Pro gives you the highs
and lows (and/or totals or average readings) for just about all available weather
conditions, with the time and/or date they
occurred, for the last 24 days, months, or
years. No other weather station on the
market even comes close. And not only can
you view the data numerically, you’ll also
see it on Vantage Pro’s on-screen graphs,
giving you instantaneous visual representations of long-term trends.
5. How often is the information
updated?
The Vantage Pro transmitter sends a data
packet to the console every 21/2 seconds.
The weather conditions that are the most
variable (such as wind speed and direction)
are updated with each packet, while most
other conditions are updated every 10
seconds. With the competition’s stations,
the update interval is much longer: 30
seconds, or even up to 3 minutes. This may
not seem like an important distinction.
But try watching the wind gust, or the rain
suddenly come pouring down. It’s very disconcerting to be looking out the window,
seeing something happening weatherwise, and not see it reflected on the console
for what seems to be an eternity.
6. How is the forecast generated?
The competition generally bases their forecasts strictly on whether barometric pressure is rising or falling. This results in none
too accurate a prediction. Vantage Pro uses
a sophisticated forecasting algorithm which
takes into account not only barometric pressure, but also wind, rainfall, temperature,
humidity, and longitude and latitude. The
result? A much more accurate forecast. Not
perfect, but even the guys with the satellite
pictures don’t always get it right!
7. How is the forecast displayed?
The competition gives their forecast by
means of an icon. We have similar icons,
plus over 80 different forecast messages
that scroll across the bottom of the displaywhen you press the FORECAST key. None of
the other stations have this scrolling message—it is unique to Davis. The ticker tape
also gives additional information, depending on which key you press. For example,
press the WIND key to display wind speed,
and you’ll see a message showing you the
10 minute average wind speed. If it’s raining, you can press the RAIN YR key to see
the last 15 minutes of rain, or RAIN DAY to
see the last 24 hours of rain. And these are
just a few examples! None of the competition has anything like this.
8. How much data can you graph
on the screen?
With Vantage Pro, you can graph just about
every weather variable, with averages and
highs and lows for most, and go back in
time for minutes, days, months, and years.
The competition typically graphs just one
variable—barometric pressure—and typically just for the last 24 hours. With all the
graphs on Vantage Pro, you can do tons of
analysis, even without purchasing an additional software package (although we offer
one of those, too). And you’ll find that the
more dramatic the weather is, the more fun
it is to look at the graphs. Just how windy is
it, and how does it compare to the last wind
storm? And how much rain did we get this
month, as compared to last month?
9. Can you use the station at higher
elevations?
Our stations can be used up to 12,500 feet
in elevation. Many of the competing stations are limited to 6,000 feet or below. If
you’re lucky enough to live and work—or
perhaps enjoy a vacation home—in the
mountains, you’ll find that our Vantage Pro
weather station works just fine, no matter
what elevation you’re at.
10. Is there a computer interface?
If you’d like to do even more analysis, you
can add our WeatherLink data logger and
software package. The data logger stores
data at the interval you choose (from one
minute to two hours) for up to six months.
You can transfer the data whenever you
like, or leave your computer on to have it
automatically transfer every day. The data
logger uses non-volatile memory, so you
won’t lose the data even if you lose power.
For some of the competing stations, no
software package is available. And while
Davis Instruments
other stations do offer a software package,
they don’t include a data logger—so your
computer must be on and the software running at all times.
11. How many alarms are there?
Our alarms can be set for just about every
weather variable, for just about any reason
imaginable—over 70 alarms, in all. Like the
graphs, the alarms found on the competition’s stations are generally quite limited.
12. What is the accuracy, resolution,
and range?
Our stations generally beat the competition’s in accuracy, resolution, and range. It
can be difficult to find the specs for competing stations. When we do find them, our
testing shows that they are a bit, shall we
say, optimistic. We are very proud of our
specs, stand behind them 100%, and are
proud to publish them in our catalog and
on our website.
13. How many other people are
using the stations?
Although our Vantage Pro stations are new,
we have an installed base of thousands
and thousands of happy Davis weather station users around the country and around
the world. If you check out the “Weather
World ’Round” section on our website
(www.davisnet.com/links), you’ll see a listing
for Norman, Oklahoma. Click on that link,
and you’ll go to the website for the National
Weather Service’s Storm Prediction Center.
They’re using our Weather Monitor II (a
predecessor to the Vantage Pro station) to
update the local “unofficial” weather conditions to their website. In addition, many
Davis weather station owners participate as
volunteer observers for the National Weather
Service, the National Hurricane Center, and
numerous local TV and radio stations.
14. How long has the company
been in business?
In business since 1963, Davis Instruments
opened up the home weather station
market back in 1989. The competition has
only appeared within the last few years. Our
weather stations are manufactured right
here in Hayward, California, and we have a
full customer service and support staff. Most
of the competing weather stations are made
overseas, and it can be difficult (if not next
to impossible) to get any kind of customer
service or aftermarket support.
23
Wireless Weather Station
Lets you keep an eye on critical weather conditions.
• Barometric Pressure.
Currently and for each
of the last 24 hours. Fiveposition trend arrow
shows whether pressure is
rising, falling, or stable.
• Temperature. Inside and
outside temperature, currently and for each of the
last 24 hours. High and
low temperature alarms.
• Humidity. Inside and outside humidity, currently
and for each of the last
24 hours. High and low
humidity alarms.
• Rain. Rainfall for the last
15 minutes and the last 24
hours, days, months, and
years. Flash flood and 24hour rain alarms.
• Rain Rate. Currently and
for each of the last 24 minutes. Rain rate alarm.
• Dew Point. Currently and for
each of the last 24 hours. High
and low dew point alarms.
• Rain Storm. Rainfall for
the last 24 storms, with
beginning and ending dates
for each storm. Rain storm
warning and alarm.
• Heat Index. Currently and
for each of the last 24 hours.
Heat index alarm.
• Wind Speed. Current wind
speed. Average for the last
ten minutes and each of
the last 24 hours. High and
average wind speed alarms.
• Wind Direction. Currently
and for the last 24
hours, days, and months.
Direction of high wind
speed.
• Wind Chill. Current wind
chill. Wind chill alarm.
• Sunrise & Sunset. Time
of sunrise and sunset at
your location—it even takes
daylight savings time into
account!
• Highs & Lows. For most
weather variables, with time
and/or date, for each of the
last 24 hours, days, months,
and years.
• Optional Sensors. For UV
and solar radiation, evapotranspiration, soil moisture,
and more.
All this—and much more—in a station that’s easy to set up and fun to use.
0311O/PR57
• On-screen graphing.
Graph current conditions,
averages, or highs and
lows for the last 24 hours,
days, months, or years.
New! ibe
WindScr
Wind
Ultrasonic eter.
Speed M 17.
See page
• Your own local forecast.
Forecast icons show sun,
part sun, clouds and rain,
or snow. Check the scrolling
ticker-tape for more details.