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select a different channel number for each
unit. Select the temperature unit from °C /
°F switch (2).
Water Thermo Sensor
Model: THWR800 / THWR800A
USER MANUAL
EN
FRONT VIEW
4. Place the main lid back on the tubular
casing and twist it to
(lock position).
• Images shown in this manual may differ
from the actual display.
• When disposing of this product, ensure it is
collected separately for special treatment
and not as normal household waste.
• Placement of this product on certain types
of wood may result in damage to its finish
for which Oregon Scientific will not be
responsible. Consult the furniture
manufacturer's care instructions for
information.
• The contents of this manual may not be
reproduced without the permission of the
manufacturer.
• Do not dispose old batteries as unsorted
municipal waste. Collection of such waste
separately for special treatment is
necessary.
• Please note that some units are equipped
with a battery safety strip. Remove the strip
from the battery compartment before first
use.
NOTE The technical specifications for this
product and the contents of the user manual
are subject to change without notice.
1. LED indicator
SPECIFICATIONS
TYPE
Dimension
Weight
Operating range in
water
Operating range in
room temperature
Temperature
resolution
Number of channels
Data transfer
1. Tubular casing
2. RESET button
3. String hole
USING THE SENSOR
1. The sensor has a string to loop through the
SCREEN DISPLAY
hole at the base of the tubular casing. This
can allow you to hang the unit while you
immerse it in water.
Transmission range
Transmission
frequency
Batteries
Remote sensor
waterproof
1. Channel indicator
2. Low battery indicator
3. Temperature display
2. Place the sensor in the water and make
sure that it is within the effective
transmission range (328 feet / 100 metres)
from the main unit.
INTRODUCTION
This sensor is compatible with various weather
station products that carry this logo
.
TIP Press RESET whenever the sensor is not
performing as expected (e.g. unable to
establish radio frequency link with the main
unit).
GETTING STARTED
The battery compartment resides in the tubular
casing, and the switches for selecting channels
and temperature unit are located on the inside
of the main lid.
(unlock position),
1. Twist the main lid to
then pull it apart from the tubular casing.
2. Remove the battery compartment lid and
insert 2 x UM-3 / AA 1.5V batteries,
matching the polarity. Replace the battery
compartment lid.
TIP Place the sensor as closely as possible to
the main unit. Otherwise, minimise
obstructions such as doors, walls and furniture
between the main unit and sensor if the sensor
cannot be placed close to the main unit. You
may need to experiment with various locations
to get the best results.
NOTE With adequate power, the Liquid Crystal
Display in outdoor temperatures will remain
operational up to -20°F (-28°C).
NOTE Wireless ranges can be impacted by a
variety of factors such as extremely cold
temperatures. Extreme cold may temporarily
reduce the effective range between the sensor
and the main unit. If the unit’s performance fails
due to low temperature, the unit will resume
proper functioning as the temperature rises to
within the normal temperature range. No
permanent damage will occur to the unit due to
low temperatures.
NOTE Standard Alkaline batteries contain a
significant amount of water. Because of this
they will freeze in low temperatures of
approximately 10°F (-12°C). Disposable Lithium
batteries have a much lower threshold for
temperature with an estimated freezing range
of below -40°F (-40°C).
IMPORTANT Do not use rechargeable
batteries.
WARNING While you may use Lithium
batteries to power the sensor, and although the
sensor can withstand low temperatures, it is not
recommended to use it in temperatures below
32°F (0°C). Placing the sensor in frozen water
may damage the unit.
3. The diagram below is the inside of the main
lid. Select a channel from Channel switch
(1). If using more than one remote unit,
BATTERY REPLACEMENT
Replace the batteries whenever the low battery
DECLARATION OF CONFORMITY
The following information is not to be used as
contact for support or sales. Please call our
customer service number (listed on our website
at www.oregonscientific.com, or on the
warranty card for this product) for all inquiries
instead.
We
Name:
Address:
BACK VIEW
5. Press RESET.
radio communications. However, there is no
guarantee that interference will not occur in a
particular installation. If this equipment does
cause harmful interference to radio or television
reception, which can be determined by turning
the equipment off and on, the user is
encouraged to try to correct the interference by
one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the
equipment and receiver.
• Connect the equipment into an outlet on a
circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio /
TV technician for help.
DESCRIPTION
100 mm (D) x 180 mm (H)
174 g
32°F (0°C) to 122°F
(50°C)
-22°F (-30°C) to 185°F
(85°C)
0.2°F (0.1°C)
3
- Channel 1:
approximately every 53
seconds
- Channel 2:
approximately
every 59 seconds
- Channel 3:
approximately every 61
seconds
328 ft (100 m)
433 MHz
2 x UM-3 / AA 1.5V
Up to 1 m (3.28 ft)
ABOUT OREGON SCIENTIFIC
Visit our website (www.oregonscientific.com) to
learn more about Oregon Scientific products. If
you're in the US and would like to contact our
Customer Care department directly, please
visit:
www2.oregonscientific.com/service/support
OR
Call 1-800-853-8883.
For international inquiries, please visit:
www2.oregonscientific.com/about/international
EU-DECLARATION OF CONFORMITY
Hereby, Oregon Scientific, declares that this
Water Thermo Sensor (model: THWR800 /
THWR800A) is in compliance with the essential
requirements and other relevant provisions of
Directive 1999/5/EC. A copy of the signed and
dated Declaration of Conformity is available on
request via our Oregon Scientific Customer
Service.
FCC STATEMENT
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) This device may not cause
harmful interference, and (2) This device must
accept any interference received, including
interference that may cause undesired
operation.
icon
shows on the remote sensor, or on the
remote sensor area of the main unit. Press
RESET after every battery replacement.
WARNING Changes or modifications not
expressly approved by the party responsible for
compliance could void the user's authority to
operate the equipment.
PRECAUTIONS
• Do not subject the unit to excessive force,
shock, dust, temperature or humidity.
• Do not cover the ventilation holes with any
items such as newspapers, curtains etc.
• Do not clean the unit with abrasive or
corrosive materials.
• Do not tamper with the unit’s internal
components. This invalidates the warranty.
• Only use fresh batteries. Do not mix new
and old batteries.
NOTE This equipment has been tested and
found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide
reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses and can
radiate radio frequency energy and, if not
installed and used in accordance with the
instructions, may cause harmful interference to
Oregon Scientific, Inc.
19861 SW 95th Ave.,Tualatin,
Oregon 97062 USA
Telephone No.: 1-800-853-8883
declare that the product
Product No.:
THWR800 / THWR800A
Product Name: Water Thermo Sensor
Manufacturer: IDT Technology Limited
Address:
Block C, 9/F, Kaiser Estate,
Phase 1, 41 Man Yue St.,
Hung Hom, Kowloon,
Hong Kong
is in conformity with Part 15 of the FCC Rules.
Operation is subject to the following two
conditions: 1) This device may not cause
harmful interference. 2) This device must
accept any interference received, including
interference that may cause undesired
operation.
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