4-8 programming password lock plateElectronic LCD cipher lock.With anti-theft alarm, calendar, recording the times of opening door, it can be set 1-8 password.If press correct password, the electronic screen will become blue, it can open the door. If press wrong password three times at the same time, the alarm will ring for 60 records.Alarm function: press the alert key 0 key first, if not press the correct password and the safe suffer danger vibration, the alarm device will be ring.