Electronic Password Lock For Home Security With 2 Mechanical Keys

1 Electronic password lock: control the circuit or chip work by password input. Control the closing of the mechanical switch, to complete unlocking and locking tasks. It has greatly exceeded the mechanical lock in performance and safety. 2 Variable password: Users can change passwords frequently to prevent passwords from being stolen. 3 Virtual password: can input a few digits before inputting the correct password as a dummy password. 4 Low battery reminder: When the voltage is lower than 4.8V, the buzzer and red light flash for 5 seconds. 5 Silent effect: low-decibel design process to avoid disturbing family rest at night.

What's in the box
1x Electronic password lock for home security with 2 mechanical keys