3 WAYS TO UNLOCK - Advanced 3-in-1 Keyless Biometric door lock: Fingerprint + Anti-peep virtual password + Physical Key, fingerprint recognition rate up to 98% and open the door just need 1 second. You can add 50 groups fingerprints, Eliminate the trouble of forgetting to bring the key when you go out.
DIY INSTALLATION - Fingerprint door lock is designed to fit US standard door, Backset 2-3/8″(60mm) and 2-1/8″(70mm), door thicknesses from 1-3/8'' to 2-1/8''(35mm -55mm). No wiring and no drilling. Fit both left handed and right handed doors.
MANY USES - Fingerprint door lock providing your room with an added level of safety, it is simplistic design for office, apartment or other private spaces.
EMERGENCY CHARGING - Keypad door knob requires 4 AAA batteries (included), According to the frequency of use, it can be used for up to 12 months. It has low battery reminder function, equipped with a USB interface for emergency charging.