This is brand new digital code keyless keypad security entry door lock with emergency override keys. It is suitable for entrance/bathroom/passage/medium grade commercial office/school/heavy duty residential projects.
Novelty and fashion appearance.
Used for wooden door or aluminium door.
2 kinds of code(master code and user code).
Easy to install or replace exit lock by any one.
Opened by code and 3 emergency override keys to open lock for emergency occasions.
Require 4 AA 1.5V alkaline batteries（Not included).
Service life of battery: approx 20,000 times (about 1 year, till the alarm while unlocking you need to replace the battery within 10 days).
Can store 1 group master code and 9 groups of user codes.
Alarm when the battery power is low.
Alarm if error code entered.
Suitable for the doors bolt size of 55-60mm.
Suitable for Door Thickness: 35-50mm (standard 2 3/8" backset)