WIRELESS 433 MHz WEATHER STATION
Congratulations on purchasing this Weather Station with wireless 433 MHz transmission of outdoor
temperature and display of indoor temperature and humidity, weather forecast icons and weather tendency
indicators. It is further featuring a DCF-77 radio controlled clock with calendar display. With only four easy to
use function keys, this innovative product is ideal for use in the home or office.
The Weather Station
DCF-77 Radio controlled time with manual setting options
Time reception ON/OFF
12/24 hour display
Hour and minute display, seconds indicated by flashing dot
Time zone option ±12hours
Date and month calendar display
Weather forecasting with 3 weather icons and weather tendency indicator
Weather forecasting icon sensitivity setting
Temperature display in degrees Celsius (°C) or Fahrenheit (°F) selectable
Indoor and outdoor temperature display with MIN/MAX recording
Indoor humidity reading displayed as RH% with MIN/MAX recordings
All MIN/MAX temperature recordings show date and time received
All MIN/MAX recordings can be reset
Indoor comfort level indicator - happy or sad face icons
Can take up to three outdoor transmitters
LCD contrast setting
Low battery indicator
Wall mounting or table standing
THE OUTDOOR TRANSMITTER
Remote transmission of outdoor temperature to weather station by 433 MHz signal
Wall mounting case
Mounting at a sheltered place. Avoid direct rain and sunshine
First, insert the batteries into the Weather station (see “How to install and replace batteries in the
Weather Station” below). Once the batteries are in place, all segments of the LCD will light up briefly.
Following some test data display, the indoor temperature and humidity, the time as 0:00 the date as
1.1. and the weather icons sun and clouds will be displayed. If the indoor temperature and humidity
are not displayed after 30 seconds, remove the batteries and wait for at least 10 seconds before
reinserting them. Once the indoor data is displayed proceed to step 2.
Within 3 minutes of activating the Weather station, place the batteries into the transmitter (see “How
to install and replace batteries in the Temperature Transmitter” below).
After a few seconds of inserting the batteries into the transmitter, the Weather Station will start
receiving data from the transmitter. The remote temperature will then be displayed on the Weather
Station. If this does not happen after 15 minutes, the batteries will need to be removed from both
units and reset from step 1.
The Weather Station can take up to 3 remote transmitters. If you have purchased additional
transmitters, follow step 2 for all extra transmitters. However, ensure that you leave 10 seconds in
between the reception of the last transmitter and the set-up of the following transmitter. The Weather
Station will number the transmitters in the order of set-up, i.e. the first transmitter will have the
temperature displayed with the number 1 against it and so on.
When all the transmitters are set up, there is a testing period, during which the display switches
quickly between all the received transmitters at random, according to which random transmission it
receives. Pressing any key will stop this process. The process also stops automatically if no keys are
pressed for a few minutes.
Once the remote temperature has been received and is displayed on the Weather Station, the DCF77 time code reception is automatically started. This takes typically between 3 - 5 minutes in good
conditions. This time period is an excellent opportunity to locate the transmitter(s) in suitable
location(s) outdoors. In order to ensure sufficient 433 MHz transmission however, this should under
good conditions be no more than 25 meters from where the Weather Station will be finally positioned
(see notes on “Positioning” and “433 MHz Reception”).
If after 10 minutes the DCF time has not been received, use the SET key to manually enter a time
initially. The clock will automatically attempt to receive the DCF time at each full hour. When this is
successful, the received time will override the manually set time. The date is also updated with the
received time (Please refer also to notes on “Radio controlled time” and “Manual time setting”).
HOW TO INSTALL AND REPLACE BATTERIES IN THE WEATHER STATION
The Weather Station uses 2 x AA, IEC LR6, 1.5V batteries. If the batteries
need to be replaced, the low battery symbol will appear on the LCD.
To install and replace the batteries, please follow the steps below:
Insert finger or other solid object in the space at the bottom center
of the battery compartment and lift up to remove the cover.
Insert batteries observing the correct polarity (see marking).
Replace compartment cover.
HOW TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE TRANSMITTER
The Temperature Transmitter uses 2 x AAA, IEC, LR3, 1.5V batteries. To
install and replace the batteries, please follow the steps below:
Slide the battery cover downwards and remove.
Insert the batteries, observing the correct polarity (see marking).
Replace the battery cover.
In the event of changing batteries in any of the units, all units need to be reset by following the setting up
procedures. This is because a random security code is assigned by the transmitter at start-up and this code
must be received and stored by the Weather Station in the first three minutes of power being supplied to it.
It is recommended to replace the batteries in all units on an annual basis to ensure optimum accuracy of
Please participate in the preservation of the environment. Return used batteries to an
The weather station has four easy
to use function keys.
SET key (Setting)
Used to enter the set mode for the following functions: LCD contrast, Time zone, Time Reception
ON/OFF, 12/24 hour display, Manual time, Year, Date, °C/°F, and Weather forecasting icon sensitivity
The year can only be displayed in the set mode (not displayed in normal mode)
IN key (Indoor)
Used to toggle between the current/ minimum / maximum indoor temperature and humidity
Press for over 3 seconds to reset the indoor maximum and minimum temperature and humidity
records (will reset all records to current level)
Note: the Time/date information is only available for MIN/MAX temperature data, and will be changed
to default time after the reset operation
Change LCD contrast, time zone, Time Reception ON/OFF, 12/24 hour display, hour, year, month,
day, °C/°F and weather forecasting icon sensitivity units in setting modes
Note: in 24hr time display mode, the day is set by using the IN key. In 12hr time display mode, the
month is set by using the IN key
OUT key (Outdoor)
Used to toggle between the current / minimum / maximum outdoor temperature
Press for around 3 seconds to reset the outdoor maximum and minimum temperature records (will
reset all temperatures to current level of the relative transmitter being reset - each transmitter’s data
must be reset separately)
Note: the time/date information of MIN/MAX data will be reset to default time as well.
Change minute, month, day in setting modes
Note: in 24hr time display mode, the month is set by using the OUT key. In 12hr time display mode,
the day is set by using the OUT key
CH key (Channel)
Toggle between the outdoor Temperature Transmitters 1, 2 and 3 (if more than 1 transmitter is used)
Exit manual setting mode
DCF Tower Icon
(for time reception)
Weather Forecast Icon
Weather Tendency Icon
Comfort indicator icon
in °C or °F
Indoor Relative Humidity %
in °C or °F
Outdoor reception signal
For better distinctness, the LCD screen is split into 5 sections displaying the information for time, date,
weather forecast, indoors and outdoors.
DCF-77 RADIO CONTROLLED TIME
The time base for the radio-controlled time is a Cesium Atomic Clock operated by the Physikalisch
Technische Bundesanstalt Braunschweig which has a time deviation of less than one second in one million
years. The time is coded and transmitted from Mainflingen near Frankfurt via frequency signal DCF-77
(77.5 kHz) and has a transmitting range of approximately 1,500 km. Your radio-controlled Weather Station
receives this signal and converts it to show the precise time in summer or wintertime.
The quality of the reception depends greatly on the geographic location. In normal cases, there should be no
reception problems within a 1500km radius of Frankfurt.
Once the outdoor temperature is displayed on the Weather station, the DCF tower icon in the clock display
will start flashing in the upper left corner. This indicates that the clock has detected that there is a radio
signal present and is trying to receive it. When the time code is received, the DCF tower becomes
permanently lit and the time will be displayed.
If the tower icon flashes, but does not set the time or the DCF tower does not appear at all, then please take
note of the following:
Recommended distance to any interfering sources like computer monitors or TV sets is a minimum of
1.5 - 2 meters.
Within ferro-concrete rooms (basements, superstructures), the received signal is naturally weakened.
In extreme cases, please place the unit close to a window and/ or point its front or back towards the
During nighttime, the atmospheric disturbances are usually less severe and reception is possible in
most cases. A single daily reception is adequate to keep the accuracy deviation below 1 second.
The following manual settings can be changed when pressing the SET key for:
LCD contrast setting
Time zone setting
Time reception ON/OFF setting
Manual time setting
Weather forecasting icon sensitivity setting
LCD CONTRAST SETTING:
The LCD contrast can be set to 8 different levels to suit the users needs (default LCD contrast setting is LCD
5). To set the desired contrast level:
Press the IN key to select the level of contrast desired.
Press the SET key to confirm and enter the “Time Zone setting” or exit the setting mode by
pressing the CH key
TIME ZONE SETTING
Time Zone (flashing)
The time zone default of the Weather Station is 0. To change to another time zone:
Press the SET key after completing the LCD contrast setting in order to enter the time zone setting
Using the IN key, set the time zone. The range runs from 0 to +12 and then runs from -12 back to 0 in
consecutive 1 hour intervals.
Press the SET key to confirm and enter the “Time Reception ON/OFF setting” or exit the setting
mode by pressing the CH key
TIME RECEPTION ON/OFF SETTING
In area where reception of the DCF-77 time is not possible, the DCF-77 time reception function can be
turned OFF. The clock will then work as a normal Quartz clock. (Default setting is ON).
The digit “ON” will start flashing on the LCD.
Use the IN key to turn OFF the time reception function.
Confirm with the SET key and enter the “12/24-Hour Display setting” or exit the setting mode by
pressing the CH key
If the Time Reception function is turned OFF manually, the clock will not attempt any reception of
the DCF time as long as the Time Reception OFF function is activated. The Time Reception icon will
not be displayed on the LCD.
12/24 HOUR TIME DISPLAY SETTING
After setting time reception ON/OFF, press the SET key, “12h” or “24h” flashes in the LCD.
Press the IN key to select the “12h” or “24h” display mode.
Press the SET again to confirm and to enter the “Manual Time setting” or exit the setting mode by
pressing the CH key
Note: When 24h mode display is selected, the calendar format will be date and month display.
When 12h mode display is selected, the calendar format will be month and date display.
MANUAL TIME SETTING
In case the Weather Station is not able to detect the DCF-signal (disturbances, transmitting distance, etc.),
the time can be manually set. The clock will then work as a normal Quartz clock.
To set the clock:
The hour and minutes digits start flashing in the time display section.
Use the IN key to adjust the hours and the OUT key to adjust the minutes. If you hold the key while
you adjust, the hours move 1 hour and the minutes move 5 minutes.
Confirm with the SET key and enter the “Calendar Setting” or exit the setting mode by pressing the
The unit will still try to receive the signal at each full hour despite it being manually set. When it does receive
the signal, it will change the manually set time into the received time. During reception attempts the DCF
tower icon will flash. If reception has been unsuccessful, then the DCF tower icon will not appear but
reception will still be attempted the following hour.
Date (flashing) Month (flashing)
The date default of the Weather station is 1. 1. of the year 2003. Once the radio-controlled time signals are
received, the date is automatically updated. However, if the signals are not received, the date can also be
set manually. To do this:
Using the IN key, set the year required. The range runs from 2003 to 2039 (default is 2003).
Press the SET key to enter the month and date setting mode.
Press the IN (or OUT) key to set the date and the OUT (or IN) key to set the month required.
Confirm with the SET key and enter the “Snooze setting ” or exit the setting mode by pressing the
The snooze setting in this Weather Station will not have any effect in this unit performance. This
feature is only available in enhance model with alarm function. Simply press the SET key to skip this
setting and enter the “°C/°F setting” or exit the setting mode by pressing the CH key.
The default temperature reading is set to °C (degree Celsius). To select °F (degree Fahrenheit):
The “°C” will be flashing, use the IN key to toggle between “°C” and “°F”.
Once the desired temperature unit has been chosen, confirm with the SET key and enter the
“Weather Forecast Icon Sensitivity setting” or exit the setting mode by pressing the CH key.
WEATHER FORECASTING ICON SENSITIVITY SETTING
For locations with rapid changes of weather conditions, the threshold can be set to a different level for faster
display of weather conditions.
Using the IN key to set the weather sensitivity level. There are 3 levels of setting: 1, 2 and 3; level 1 is
the most sensitive setting, level 3 is the least sensitive setting (default setting is "2").
Confirm with the SET key and exit the Manual settings.
WEATHER FORECAST AND TENDENCY
THE WEATHER FORECASTING ICONS
There are 3 weather icons on the third section of the LCD which can be displayed in any of the following
Cloudy with sunny intervals
For every sudden or significant change in the air pressure, the weather icons will update accordingly to
represent the change in weather. If the icons do not change, then it means either the air pressure has not
changed or the change has been too slow for the Weather Station to register. However, if the icon displayed
is a sun or raining cloud, there will be no change of icon if the weather gets any better (with sunny icon) or
worse (with rainy icon) since the icons are already at their extremes.
The icons displayed forecasts the weather in terms of getting better or worse and not necessarily sunny or
rainy as each icon indicates. For example, if the current weather is cloudy and the rainy icon is displayed, it
does not mean that the product is faulty because it is not raining. It simply means that the air pressure has
dropped and the weather is expected to get worse but not necessarily rain.
After setting up, readings for weather forecast should be disregarded for the next 12-24 hours. This will allow
sufficient time for the Weather Station to collect air pressure data at a constant altitude and therefore result
in an more accurate forecast.
Common to weather forecasting, absolute accuracy cannot be guaranteed. The weather forecasting feature
is estimated to have an accuracy level of about 75% due to the varying areas the Weather Station has been
designed for use in. In areas that experience sudden changes in weather (for example from sunny to rain),
the Weather Station will be more accurate compared to use in areas where the weather is stagnant most of
the time (for example mostly sunny).
If the Weather Station is moved to another location significantly higher or lower than its initial standing point
(for example from the ground floor to the first floor of a house), remove the batteries and re-insert them after
about 30 seconds. By doing this, the Weather Station will not mistake the new location as being a possible
change in air-pressure when really it is due to the slight change of altitude. Again, disregard weather
forecasts for the next 12 to 24 hours as this will allow time for operation at a constant altitude.
THE WEATHER TENDENCY INDICATOR
Working together with the weather icons are the weather tendency indicators (located on the left and right
hand side of the weather icons). When the indicator points upwards, it means that the air-pressure is
increasing and the weather is expected to improve, but when indicator points downwards, the air-pressure is
dropping and the weather is expected to become worse.
Taking this into account, one can see how the weather has changed and is expected to change. For
example, if the indicator is pointing downwards together with cloud and sun icons, then the last noticeable
change in the weather was when it was sunny (the sun icon only). Therefore, the next change in the weather
will be cloud with rain icons since the indicator is pointing downwards.
Once the weather tendency indicator has registered a change in air pressure, it will remain permanently
visualized on the LCD.
INDOOR TEMPERATURE AND HUMIDITY READING WITH COMFORT LEVEL
Comfort level symbol
The indoor temperature and humidity are detected automatically and displayed on the fourth section of the
THE COMFORT LEVEL INDICATORS
A happy face icon “☺” indicating a temperature level between 20.0°C and 25.9°C (68°F
to 78.6°F) and humidity between 45% and 65%.
A sad face icon “ ” indicating any value outside the comfortable range.
TOGGLING AND RESETTING THE INDOOR RECORDINGS
To toggle between the indoor current, minimum and maximum temperature and humidity data and the
times at which they were recorded, press the IN key:
Once to show the minimum temperature and humidity values with time and date recorded
Twice to show the maximum temperature and humidity values with time and date recorded
Three times to return to the current time, date, temperature and humidity levels.
Note: the Time/date information is only available for the MIN/MAX temperature data.
To reset the minimum and maximum temperature and humidity data and the times at which they were
recorded, press the IN key continuously for about 3 seconds. This will reset all minimum and
maximum data recorded to the current time, date, temperature and humidity. The min/max
temperatures and humidity recorded are of current time and they remain unaffected by the time zone
Outdoor reception signal
Number showing the
transmitter unit (only if
there is more than one
in °C or °F
The fifth LCD section shows the outdoor temperature and a reception signal. A number beside the
temperature will also show if more than one transmitter is used.
TOGGLING AND RESETTING THE OUTDOOR RECORDINGS:
To toggle between the outdoor current, minimum and maximum temperature data and the times at
which they were recorded, press the OUT key:
Once to show the minimum temperature value with time and date recorded
Twice to show the maximum temperature value with time and date recorded
Three times to return to the current time, date and temperature level
To toggle between transmitters, press the CH key:
Once to show transmitter 2
Twice to show transmitter 3
Three times to return to transmitter 1
Note: The transmitter number will only be displayed if there is more than one transmitter detected.
To reset the minimum and maximum outdoor temperature data and the times at which they were
recorded, press the OUT key continuously for about 3 seconds. This will reset all minimum and
maximum data recorded to the current time, date and temperature. The min/max temperatures
recorded are of current time and they remain unaffected by the time zone setting.
Note: the MIN/MAX data for each transmitter needs to be reset separately.
The outdoor temperature is measured and transmitted every 60 seconds.
The range of the Temperature transmitter may be affected by the temperature. At cold temperatures the
transmitting distance may be decreased. Please bear this in mind when placing the transmitter.
433 MHz RECEPTION:
The Weather station should receive the temperature data within 15 minutes after set-up. If the temperature
data is not being received 15 minutes after setting up (the display shows “---”), then please check the
The distance of the Weather Station or transmitter should be at least 1.5 to 2 meters away from any
interfering sources such as computer monitors or TV sets.
Avoid placing the receiver onto or in the immediate proximity of metal window frames.
Using other electrical products such as headphones or speakers operating on the same signal
frequency (433MHz) may prevent correct signal transmission and reception.
Neighbors using electrical devices operating on the 433 MHz signal frequency can also cause
When the 433MHz signal is received correctly, do not re-open the battery covers of either the transmitter or
Weather Station, as the batteries may spring free from the contacts and force a false reset. Should this
happen accidentally then reset all units (see Setting up above) otherwise transmission problems may occur.
The transmission range is about 25 m from the transmitter to the Weather Station (in open space). However,
this depends on the surrounding environment and interference levels. If no reception is possible despite the
observation of these factors, all system units have to be reset (see Setting up).
POSITIONING THE WEATHER STATION
The Weather Station comes attached with a removable table stand, which provides the
option of table standing or wall mounting the unit. Before wall mounting, please check that
the outdoor temperature can be received from the desired locations. To wall mount:
Fix a screw (not supplied) into the desired wall, leaving the head extended out by
Remove the stand from the Weather Station by pulling it away from the base and
hang the station onto the screw. Remember to ensure that it locks into place before
POSITIONING THE OUTDOOR TEMPERATURE TRANSMITTER
The Temperature Transmitter is supplied with a holder that may be attached to a wall
with the three screws supplied. Before securing the transmitter, ensure that the
433MHz signal (outdoor temperature readings) is properly received. To attach to the
wall, please follow the steps below:
Mark the wall using a pen through the holes in the holder to obtain the exact
Drill holes in the wall at the points marked.
Screw holder onto wall.
There is also double sided tape included with the wall mount. On smooth surfaces this can be used instead
of drilling holes. The mounting surface can, however, affect the transmission range. If for example the unit is
attached to a piece of metal, it may then either reduce or increase the transmitting range. For this reason,
we recommend not placing the unit on any metal surfaces or in any position where a large metal or highly
polished surface is in the immediate proximity (garage doors, double glazing, etc.). Choose a sheltered
place. Avoid direct rain and sunshine.
Before securing in place, please ensure that the Weather station can receive the 433MHz signal from the
Temperature transmitter at the positions that you wish to situate them.
The Temperature Transmitter simply clicks in or out of the holder. When inserting or removing the
Temperature Transmitter from the wall holder please hold both units securely.
CARE AND MAINTENANCE:
Extreme temperatures, vibration and shock should be avoided as these may cause damage to the
units and give inaccurate forecasts and readings.
When cleaning the displays and casings, use a soft damp cloth only. Do not use solvents or scouring
agents as they may mark the LCD and casing.
Do not submerge the units in water.
Immediately remove all low powered batteries to avoid leakage and damage. Replace only with new
batteries of the recommended type.
Do not make any repair attempts to the units. Return it to its original point of purchase for repair by a
qualified engineer. Opening and tampering with the units may invalidate its guarantee.
Do not expose the units to extreme and sudden temperature changes, this may lead to rapid changes
in forecasts and readings and thereby reduce their accuracy.
Temperature measuring range
-9.9ºC to +59.9ºC with 0.1ºC resolution
Indoor relative humidity measuring range
Indoor Temperature checking interval
Indoor Humidity checking interval
Outdoor Temperature reception
Battery life cycle
Dimensions (L x W x H)
14.2°F to 139.8°F with 0.2°F resolution
(“OF.L” displayed if outside this range)
-29.9ºC to +69.9ºC with 0.1ºC resolution
-21.8°F to 157.8°F with 0.2°F resolution
(“OF.L” displayed if outside this range)
1% to 99% with 1% resolution
(“- -“ displayed if outside this range)
every 15 seconds
every 20 seconds
every 5 minutes
2 x AA, IEC LR6, 1.5V
2 x AAA, IEC LR3, 1.5V
approximately 12 months (Alkaline batteries
90 x 30 x 138 mm (table stand included)
59 x 22 x 65 mm (wall bracket excluded)
The manufacturer and supplier cannot accept any responsibility for any incorrect readings and any
consequences that occur should an inaccurate reading take place.
This product is not to be used for medical purposes or for public information.
This product is only designed to be used in the home as indication of the future weather and is not
100% accurate. Weather forecasts given by this product should be taken only as an indication and not
as being totally accurate.
The specifications of this product may change without prior notice.
This product is not a toy. Keep out of the reach of children.
No part of this manual may be reproduced without written consent of the manufacturer.
R&TTE Directive 1999/5/EC
Summary of the Declaration of Conformity : We hereby declare that this wireless transmission device does
comply with the essential requirements of R&TTE Directive 1999/5/EC.