Geek Smart Fingerprint Door Lock – Biometric Door Knob Fingerprint Door Knob Keyless Entry Door Locks with Handle Door Lever for Homes/Apartments/Office/AirBnB/Hotels (Silver)

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Lock and unlock your door in a single motion – by scanning your fingerprints as you grip the door handle. A lightning speed 0.25 seconds is all that is required to open. Much faster than any key.
No wires required. 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.
Built-in 800mAh lithium batteries provide the uninterrupted power for the fingerprint door lock. There is a Micro USB emergency power interface to charge the batteries.
Worry-Free 30 hassle-free return policy and 24-hour technical support by email or by phone. Before installing, please scan the QR codes in the user manual to watch the installation video.