Visit our website (www.oregonscientific.com) to learn
more about your new product and other Oregon
Scientific products such as digital cameras, handheld organizers, health and fitness gear, and weather
stations. The website also includes contact
information for our customer service department, in
case you need to reach us.
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EN
ABOUT THIS GUIDE
Congratulations on your selection of the Oregon
Scientific Wireless Outdoor Temperature Sensor
(THR228NF)
This sensor is compatible with a wide variety of
weather monitoring tools, and can be used with most
of the Oregon Scientific receiver units.
Keep this manual handy as you use your ne w product.
It contains practical step-by-step instructions, as well
as technical specifications and warnings you should
know.
In this box, you will find:
•Remote unit
•Batteries
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PRODUCT OVERVIEW
EN
DESCRIPTIONS
1. Temperature display
2. LED indicator
3. °C/°F switch
4. Reset button
5. Channel switch
6. Battery compartment
7. Battery compartment lid
8. Wall mount
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EN
GETTING STARTED
This product can be used with up to 2 remote units
to transmit outdoor temperature data to a main
(indoor) unit. The measurement unit (°C or °F) and
channel number (1, 2, or 3) switches are located in
the battery compartment, and should be set prior to
installation.
Additional remote units sold separately.
SET UP
1. Place remote unit as close as possible to the
main unit.
2. Remove the battery compartment lid. (You will
need a small Phillips screwdriver.)
3. Assign a Channel Number. If you
are using more than one remote
unit, select a different channel
number for each unit.
4. Set the measurement unit.
5. Insert the batteries. Match the polarity , as shown
in the battery compartment.
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6. Press RESET with the point of a blunt object
(such as a ball point pen).
7. Replace the battery compartment lid. Secure.
8. Mount the remote unit on a flat surface using
the recess holes on the back of the mounting
unit. Insert the sensor into the mounting unit,
and gently push down to secure. F or best results:
• Place the unit out of
direct sunlight and
moisture.
EN
• Do not place the remote unit more than 20 –
30 meters (60 – 90 feet) from the main
(indoor) unit.
• Position the unit so that it faces the main
(indoor) unit. Minimize obstructions such as
doors, walls, and furniture.
You may need to experiment with various
locations to get the best reception.
9. Once the batteries are in place, the sensor will
transmit signals every 40 seconds. The readings
shown on the main unit depend on which remote
sensor (1, 2, or 3) is selected. Refer to the main
unit User Manual for more information.
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EN
CHANGE CHANNEL
Repeat the Set Up procedure (à 4). In Step 3, select
a different Channel Number.
LOW BATTERY WARNING
Replace the batteries whenever the low battery
signal ( ) shows on the remote unit, or on the
remote unit area of the main unit.
Do not use rechargeable batteries. Properly
dispose used batteries by taking them to an
authorized disposal station.
RESET SYSTEM
The RESET button is located in the battery
compartment. Press it with the point of a blunt object
(such as a ball point pen) whenever you change the
batteries, or whenever performance is not behaving
as expected (e.g., unable to establish radio frequency
link with main unit). Ref er to the User Manual for the
main unit for more information.
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SAFETY AND CARE
Wash the unit with a slightly damp cloth and mild
detergent. Avoid dropping the unit or placing it in a
high-traffic location.
Do not expose the unit to direct sunlight since this
may affect the accuracy of measurements.
WARNINGS
This product is designed to give you years of service
if handled properly. Observe the following guidelines:
EN
•Never immerse the unit in water. This can cause
electrical shock and damage the unit.
•Do not subject the main unit to extreme force,
shock, or fluctuations in temperature or humidity .
•Do not tamper with the internal components.
•Do not mix new and old batteries or batteries of
different types. Do not use rechargeable
batteries with this product.
•Remove the batteries if storing this product for
a long period of time.
•Do not scratch the LCD display.
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EN
•Do not make any changes or modifications to
this product. Unauthorized changes may void
your right to use the product.
•The contents of this user manual are subject to
change without notice.
•Images not drawn to scale.
TROUBLESHOOTING
Check here before contacting our customer service
department.
ProblemSymptomRemedy
TempMain unit
Remote
unit
8
shows “LLL”
or “HHH”
Cannot locate
main unit
Temperature is
out-of-range.
Check batteries
(à 6)
Check location
(à 5)
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SPECIFICATIONS
Dimensions
L x W x H92 x 60 x 20 mm
(3.6 x 2.4 x 0.8 inches)
Weight63 grams (0.1 lbs.) without
batteries
Temperature
Unit°C or °F
Range-20 °C to 60 °C
(-4 °F to 140 °F)
Resolution0.1 °C (0.2 °F)
EN
Frequency
RF frequency433 MHz
Range30 meters (98 feet) with no
obstructions
Transmissionevery 40 seconds
Channel No.1, 2, or 3
Unit°C or °F
Power2 x UM-4 (AAA)
1.5V alkaline batteries
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EN
EC-DECLARATION OF CONFORMITY
This product contains the approved transmitter module TX 01 and
complies with the essential requirements of Article 3 of the R&TTE
1999/5/EC Directives, if used for its intended use and that the
following standard(s) has/have been applied: