scratch the plastic parts and corrode the electronic circuit.
EN
3. Do not subject the unit to excessive force, shock, dust, temperature or
humidity, which may result in malfunction, shorter electronic life span,
damaged battery and distorted parts.
INTRODUCTION
Congratulations on your purchase of the THR238N Remote Thermo Sensor.
4. Do not tamper with the unit’s internal components. Doing so will
invalidate the warranty on the unit and may cause unnecessary damage.
The unit contains no user-serviceable parts.
This 433MHz Multi-Channel In-Out Thermometer monitors temperature
changes of outdoor sites. Operation is easy and no wire installation is
required.
REMOTE THERMO SENSOR
WITH LCD
5. Only use fresh batteries as specified in the user’s manual. Do not mix
new and old batteries as the old ones may leak.
6. Always read the user’s manual thoroughly before operating the unit.
COMPATIBLE UNITS
Examples of compatible units are as follows:
MODEL : THR268
SPECIFICATIONS
Temperature Measurement
USER'S MANUAL
EMR812HG EMR899HG WMR918
Proposed operating range
Temperature resolution
RF transmission frequency
No. of remote unit
:
:
:
:
:
:
:
:
:
-30.0°C to +60.0°C (-22.0°F to 140.0°F)
0.1°C (0.2°F)
MAIN FEATURES
433 MHz
A
B
C
D
E
F
LCD
maximum of 3
Displays the current temperature monitored by the remote unit
RF transmission range
Temperature sensing cycle
maximum 30 meters
LED INDICATOR
around 40 seconds
Flashes when the remote unit transmits a reading
Power
use 2 pcs UM-3 “AA” 1.5V alkaline battery
80.5 gm (without batteries)
105 x 70 x 21 mm (H x W x D)
°C/°F SLIDE SWITCH
Selects between Centigrade (°C) and Fahrenheit (°F)
Weight
Dimension
CHANNEL SLIDE SWITCH
Designates the remote unit Channel 1, Channel 2 or Channel 3
CAUTION
RESET BUTTON
-
-
The content of this manual is subject to change without further notice.
Returns all settings to default values
Due to printing limitation, the displays shown in this manual may differ
from the actual display.
BATTERY COMPARTMENT
-
-
The manufacturer and its suppliers hold no responsibility to you or any
other person for any damage expenses, lost profits, or any other claim
that may arise from using this product.
Accommodates two UM-3 or AA size alkaline batteries
E
G
H
BATTERY DOOR
The contents of this manual may not be reproduced without the
permission of the manufacturer.
C
F
RESET CH
1
2
3
C
D
WALL-MOUNT HOLDER
Supports the remote unit in wall-mounting
F
I
REMOVABLE TABLE STAND
ABOUT OREGON SCIENTIFIC
For standing the remote unit on a flat surface
Scientific products such as digital cameras; MP3 players; children’s elec-
tronic learning products and games; projection clocks; health and fitness
gear; weather stations; and digital and conference phones. The website
also includes contact information for our Customer Care department in case
you need to reach us, as well as frequently asked questions and customer
downloads.
GETTING STARTED
G
Note: To ensure proper reception between the main unit and the remote
sensor, follow the instructions carefully.
BATTERY AND CHANNEL INSTALLATION
1. Place both units as close as possible to each other.
We hope you will find all the information you need on our website, however
if you’re in the US and would like to contact the Oregon Scientific Customer
Care department directly, please visit:
2. Assign a different channel to each remote sensor by changing the
channel switch in the battery compartment of the remote sensor. [FIG A]
3. Select the units of measurement for the temperature display on the °C/
www2.oregonscientific.com/service/support
°F slide switch. [FIG B]
4. Install 2 alkaline batteries (UM-3 or "AA" size 1.5V) strictly according to
the polarities shown. [FIG C]
OR
5. Insert batteries or press the reset button of the main unit. Follow the
instructions as set out in the user's manual.
Call 1-800-853-8883.
6. Position the remote sensor and main unit within effective transmission
range, which in usual circumstances, is 30 meters.
Note: The effective range may be limited by building materials and the
position of either the main unit or remote sensors. Try various set-up
arrangements for best result.
For international enquiries, please visit:
www2.oregonscientific.com/about/international
Though the sensor is weatherproof, and is meant for use outside, it should
be placed away from direct sunlight, rain, or snow.
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.
CHANGING CHANNELS
Once a channel is assigned to a unit, you can only change it by removing
the batteries and repeating the above procedure.
1
1
WARNING Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
[ FIG A ]
[ FIG B ]
LOW-BATTERY WARNING
A battery-low indicator [
] will activate on the sensor to indicate that the
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.
batteries are low and require changing. Low batteries for a given sensor will
also be indicated on the main unit. Replace the batteries when the low-
battery indicator appears.
Note: Disposed of improperly, batteries can beharmful. Protect the
environment by taking exhausted batteries to authorized disposal
stations.
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 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:
C
F
R
E
S
E
T
C
H
1
2
3
C
F
R
E
S
E
T
C
H
1
2
3
OPERATION
Once batteries are in place, the sensor will start transmitting samplings at
40-second intervals.
The remote sensor reading shown on the LCD depends on which remote
sensor channel has been chosen.
•
•
•
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.
HOW TO RESET THE UNIT
The reset function is required only when the unit is operating in an unfavorable
way or malfunctioning.
•
Consult the dealer or an experienced radio / TV technician for help.
[ FIG C ]
To access:
DECLARATION OF CONFORMITY
1. Lift open the battery compartment door.
2. Place a blunt stylus into the hole marked RESET and press.
3. Replace the battery compartment door.
See the user's manual of your main unit for further information.
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
inquiries instead.
We
HOW TO USE THE TABLE STAND OR WALL MOUNT
This sensor comes with a wall-mount holder and a removable stand. Use
Name:
Oregon Scientific, Inc.
19861 SW 95th Ave., Tualatin,
Oregon 97062 USA
Address:
either to hold the unit in place. [ FIG D]
Telephone No.: 1-800-853-8883
PRECAUTIONS
This product is engineered to give you years of satisfactory service if you
handle it carefully. Here are a few precautions:
1. Do not immerse the unit in water.
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[ FIG D ]
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