. Operation: enter the password to open and close the door
. Size: panel: W8.5cm*D5.5cm*H1.5cm, a lock core: W11.8cm*D4.5cm*H2.9cm
. Material: zinc alloy
. Characteristic.
. Two level management: manage passwords and user password.
. 1 ~ 10 bit password customer set free
. Simple installation and operation, easy to use.
. Low voltage alarm
. The external battery case of emergency power supply
. Three to the lock, safe and reliable