Oregon Scientific RMR132HG User Manual page 4

3. Place the main unit as close as possible next to the remote unit,
reset the main unit after installing batteries. This will ensure
easier synchronization between the transmission and reception
of signals.
4. Position the remote unit and main unit within effective
transmission range, which, in usual circumstances, is 20 to 30
meters.
Note that the effective range is vastly affected by the building
materials and where the main and remote units are positioned. Try
various set-ups for best result.
Though the remote units are weather proof, they should be placed
away from direct sunlight, rain or snow.
BATTERY AND CHANNEL
INSTALLATION: REMOTE UNIT
The remote thermo-hygro sensor unit uses two (2) UM-4 or "AAA"
size alkaline batteries.
Follow these steps to install / replace batteries:
1. Remove the screws on the battery compartment.
2. Select the channel number on the CHANNEL slide switch.
3. Select the temperature display unit on the °C/°F slide switch.
4. Insert the batteries strictly according to the polarities shown
therein.
5. Replace the battery compartment door and secure its screws.
Replace the batteries when the low-battery indicator of the particular
channel lights up on the main unit. (Repeat the steps described in
section "BEFORE YOU BEGIN")
Note that once a channel is assigned to a remote unit, you can only
change it by removing the batteries or resetting the unit.
BATTERY INSTALLATION: MAIN UNIT
1. Gently lift the tab on the battery compartment door.
2. Install 2 alkaline batteries (UM-3 or "AA" size 1.5V) strictly
according to the polarities shown.
4