Oregon Scientific THGR238NF User manual

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TABLE OF CONTENTS
Additional resources ........................................... 1
About this guide .................................................. 2
Product overview ................................................ 3
Getting started .................................................... 4
Set up.............................................................. 4
Change channel .............................................. 6
Low battery warning ........................................ 6
Reset system ...................................................... 6
Safety and care................................................... 7
Warnings ............................................................. 7
Troubleshooting .................................................. 8
Specifications ...................................................... 9
ADDITIONAL RESOURCES
Visitourwebsite (www.oregonscientific.com)to learn
more about your new product and other Oregon
Scientific products such as digital cameras, hand-
heldorganizers, healthandfitness gear,andweather
stations. The website also includes contact
information for our customer service department, in
case you need to reach us.

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ABOUT THIS GUIDE
Congratulations on your selection of the Oregon
Scientific Wireless Outdoor Temperature and
Humidity Sensor (THGR 228 NF)
This sensor is compatible with a wide variety of
weathermonitoringtools, and canbeused with most
of the Oregon Scientific receiver units.
Keep this manual handy as you use your new
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 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
3
4
5
6
7
1
2
8

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GETTING STARTED
This product can be used with up to 2 remote units
to transmit outdoor temperature and humidity 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
NOTE
1 2 3
CHANNEL
RESET
1 2 3
CHANNEL
RESET

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compartment.
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.Insertthe sensor intothemounting unit,and
gently push down to secure. For best results:
•Place the unit out of
direct sunlight and
moisture.
•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. Minimizeobstructions suchas
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
transmitsignalsevery 40 seconds.The readings
shownonthe mainunitdepend on whichremote

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sensor (1, 2, or 3) is selected. Refer to the main
unit User Manual for more information.
CHANGE CHANNEL
RepeattheSet Upprocedure(4). InStep3, select
a different Channel Number.
LOW BATTERY WARNING
Replacethe batterieswhenever thelow batterysignal
( ) showsonthe remote unit, or ontheremoteunit
area of the main unit.
Donot userechargeablebatteries. Properly
dispose used batteries by taking them to an
authorized disposal station.
RESET SYSTEM
The RESET button is located in the battery
compartment. Pressit withthepoint ofablunt 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). Refer to the User
Manual for the main unit for more information.
NOTE

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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
ifhandled properly. Observe thefollowingguidelines:
•Neverimmersethe unitinwater. Thiscancause
electrical shock and damage the unit.
•Do not subject the main unit to extreme force,
shock,or fluctuations intemperature orhumidity.
•Do not tamper with the internal components.
•Do not mix new and old batteries or batteries of
differenttypes.Donotuse rechargeablebatteries
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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Problem Symptom Remedy
Temp Main unit Temperature is
shows out-of-range.
“LLL” or “HHH”
Remote Cannot Check batteries
unit locate main (6)
unit
•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.
Check location
(5)

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SPECIFICATIONS
Dimensions
L x W x H 92 x 60 x 20 mm
(3.6 x 2.4 x 0.8 inches)
Weight 63 grams (0.1 lbs.)
without batteries
Temperature
Unit °C or °F
Range -20 °C to 60 °C
(-4 °F to 140 °F)
Resolution 0.1 °C (0.2 °F)
Relative humidity
Range 25% to 95%
Resolution 1%
Frequency
RF frequency 433 MHz
Range 30 meters (98 feet) with no
obstructions
Transmission every 40 seconds
Channel No. 1, 2, or 3
Unit °C or °F
Power 2 x UM-4 (AAA) 1.5V
alkaline batteries

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EC-DECLARATION OF CONFORMITY
This product contains the approved transmitter module TX 01
and complies with the essential requirements ofArticle 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:
Efficient use of radio frequency spectrum
(Article 3.2 of the R&TTE Directive)
applied standard(s) EN 300 220-1(2,3):1997
Electromagnetic compatibility
(Article 3.1.b of the R&TTE Directive)
applied standard(s) ETS 300 683:1997
Safety of information technology equipment
(Article 3.1.a of the R&TTE directive)
applied standard(s) EN 60950:1997
Additional information:
Theproduct istherefore conform with the Low VoltageDirective
73/23/EC, the EMC Directive 89/336/EC and R&TTE Directive
1999/5/EC(appendix II)and carriesthe respective CE marking.
VS-Villingen / Germany August 2001
Gerhard Preis
R&TTE Representative of manufacturer
COUNTRIES RTTE APPROVAL COMPLIED
All EC Countries, Switzerland
and Norway
©2003 Oregon Scientific. All rights reserved.
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Wireless Remote Thermo-Hygro Sensor
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User Manual