Philips LRM3120K/27 Manual page 4

Installing Batteries
The keypad controlled door alarm
requires three (3) AAA Alkaline
batteries (not included).
To install the batteries:
1. Remove screw from battery
compartment door located
on back of the unit. Slide off the
door in the direction of
the arrow.
2. Insert three (3) AAA batteries
noting the polarity diagram inside
the battery compartment.
3. Replace door and
secure screw.
4