Fingerprint Door Lock Smart Door Lock Biometric Door Knob Keyless Entry Door

Lock and unlock your door in a single motion - by scanning your fingerprints as you grip the door handle. A lightning speed 0.1 seconds is all that is required to open. Much faster than any key.

Fits standard-sized doors of 1-3/8'' to 2-1/8'' (35 to 55mm) door thickness, adjustable latch 2-3/8''(60mm) or 2-3/4''(70mm). Suitable for both left and right-handed doors. Voice prompts guide you to set up to 20 fingerprints, including 2 admin-user fingerprints.

Note: When 2 admin-user fingerprints have been collected, adding new one will prompt normal-user fingerprint collection. Fingerprint door knob requires 4 AAA batteries, according to our test, the batteries can last for 12 months.

There is a Micro USB emergency charge port for emergency unlock when the lock is out of battery. No worry about be locked outside. Before installing, please scan the QR codes in the user manual to watch the installation video.