IRONZON Fingerprint Door Lock Smart Door Lock with App Code Backup Key Fingerprint Smart Door Knob with Handle for Home Hotel Office Apartment Bedroom Black

Multiple Ways To Unlock: Door Lock 4-in-1 with fingerprint + password + app + Key(2 include), 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

EASY INSTALLATION: Fingerprint door lock is designed to fit US standard door, Backset 2-3/8?(60mm) and 2-1/8?(70 mm), door thicknesses from 1-3/8'' to 2-1/8''(35 mm -55 mm), No wiring and no drilling; Fit both left handed and right handed doors

UNLOCK WITH SAMRT APP: You can use mobile phone to unlock, or you can set a temporary password and share it with friends, visitors or housekeepers; This door lock is very suitable for families, hotels, schools and garages; Support ios and android devices

EMERGENCY CHARGING: Keypad door knob requires 4 AAA batteries , it has low battery reminder function, equipped with a Type-C interface for emergency charging

CUSTOMER SERVICE: If you have product information you would like to know and any questions, we will get back to you within 24 hours