4
Power supply
3.1. General
If the battery voltage is insufficient, after entering the opening code, a high-pitched
warning tone is emitted 10 times and the red and green LEDs flash alternately 10
times. The battery should be replaced within the next few days.
The lock is powered by a
9V ALKALINE block battery.
After changing the battery, enter the valid opening code 00 X X X X X. A
triple beep signal then sounds, enter opening code 00 X X X X X X again and
the lock opens.