Features :

Smart Password Drawer Cabinet Lock

Power: 4 AA Batteries / 6 V
Warning When Power Lower Than 4.8V;
More than 12 months'battery life;
External power supply is available
Gears portfolio campaign to secure safe operation;
Working Temperature: -30℃ to 80℃

Control mode: personal mode / public mode

Personal mode: 

The password lock is normally closed by default; it can be unlocked by entering the correct password.

Public mode: Use in public places; the password lock is normally open by default; the user can store personal belongings 

and close the cabinet door by entering a 4-10 custom password when using it; 

when you need to pick up the goods, enter the same custom password again to unlock .

Any password to close/open any locker lock !