Smart Door knob Fingerprint Door Lock Smart Lock Biometric Door Lock Spherical Fingerprint Door knob with App Control For Bedrooms Cloakroom Apartment Office Hotels

3-IN-1 Smart Door KnobOne Touch Unlock!Fingerprint UnlockFast Fingerprint Identification: ＜0.1SFingerprint Storage: 20 PcsLow Rejection Rate:＜0.01%Smart Control, Secure!App ControlApp unlockSet automatic locking timeCheck unlock recordsManage users' fingerprintAlways give you a unlock way!Back-up KeysEach lock is equipped with 2 back-up keys, in case the lock is out of power, the back up keys will help you get the door unlock.Auto-Lock, Free Your HandsEasy InstallationFit Right-opened and Left-opened DoorGreat replacement and upgrade of your existing locks