typical usage is up to one year.
1. Slide cover off the battery compartment
located on the front of the main unit.
2. Insert (4) LR44 button batteries noting
3. Replace battery compartment cover.
NOTE: The magnet must be placed on the
right side of the alarm. The arrows on the
alarm and the magnet must align.
1. Locate a postion on the window or door
to be protected that allows easy access to