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A14 [ THERMO ] button
Alternates between indoor and outdoor temperature
displays and activates auto-search for thermo signal
A15 [ RESET ] Button
Resets the unit by returning all settings to their default
values
A16 Battery Compartment
Accommodates four UM4 or AAA-size batteries (included)
A17 Table Stand
For placing the unit on a flat surface
A18 Wall-Mount Hole
For mounting the unit on a wall
B
REMOTE THERMO SENSOR
B1 LCD
Displays the current temperature monitored by the remote
unit
B2 LED indicator
Flashes when the remote unit transmits data to the main
display unit
B3 °C/°F slide switch
Selects between Centigrade (°C) and Fahrenheit (°F)
B4 [
] Battery-low indicator
Appears when the battery power is low
B5 Reset button
Returns all settings to default values
B6 Battery compartment
Accommodates two UM-3 or AA size alkaline batteries
(included)
B7 Battery door
B8 Wall-mount holder
Use to mount remote sensor on a wall
B9 Removable table-stand
For standing the remote unit on a flat surface
BATTERY INSTALLATION AND REMOTE
THERMO-SENSOR SETUP
Follow this step-by-step procedure for installing batteries and
setting up the remote-sensor unit. Successful setup should ensure
that temperature signals are properly received.
Note: The effective range may be limited by building
materials and the position of either the main unit or the
remote thermo-sensor unit. Try various set-up
arrangements for best result.
Setting up the thermo-sensor unit:
1. Position the remote sensor within the signal transmission
range of the main display unit. The maximum transmission
range is 100 feet (30 metres).
2. Remove the screws of the battery door on the remote thermo-
sensor unit.
3. Select display of temperature in either °C or °F using the
°C/°F slide switch.
4. Install into the thermo-sensor unit, two UM-3 or "AA" size
1.5V alkaline batteries strictly according to the polarities
shown.
5. Replace the battery compartment door and secure its screws.
Note: Though the sensor is splash proof and is meant for
use outside, it should be placed away from direct sunlight,
rain, or snow.
Once the batteries have been inserted into the remote thermo-
sensor unit, batteries can now be inserted into the main unit.
The JMR838WFA (main unit) requires four UM4 or "AAA" size
batteries for operation.
How to insert batteries into the main unit:
1. Press the door tab and click-open the door.
2. Insert the batteries strictly according to the polarities shown
therein.
2
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