La Crosse Technology WS-9630U-IT-CA Instruction Manual page 9

INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE SENSOR
The Temperature Sensor uses 2 x AA, IEC LR6, 1.5V battery. To install and replace
the batteries, please follow the steps below:
1. Remove the battery compartment cover at the back of the sensor.
2. Insert the batteries, observing the correct polarity (see marking).
3. Replace the battery compartment cover on the unit.
Note:
In the event of changing batteries in any of the units, all units need to be reset by following the setting up
procedures. This is because a random security code is assigned by the sensor at start-up and this code
must be received and stored by the Weather station in the first 3 minutes of power being supplied to it.
BATTERY CHANGE:
It is recommended to replace the batteries in all units regularly to ensure optimum accuracy of these units
(Battery life See Specifications below).
8