Smart Door Lock, Fingerprint Door Knob with Lock, Autolock Biometric Door Lock, Keyless Thumbprint Entry Door Lock for Bedrooms, Hotels, Apartments, Offices and Garages

Hiencetec Fingerprint door lock: Biological fingerprint door maintain adopts advanced 360° fingerprint sensor, 99% recognition rate, 0.3 reading fingerprint speed. It can store up to 50 fingers, no more looking for keys or worrying about forgetting them.
Easy installation: The smart fingerprint door knob can also be easily installed in minutes with a screwdriver, the door lock design is suitable for American standard doors. The latch size is 2-3/8″ (60mm) or 2-1/8″ (70mm), and door thicknesses from 1-3/8″ to 2″- 1/8″ (35mm-54mm), Suitable for left doors and right doors.
Automatic lock: The smart door lock has built-in sensor detection and automatically locks when your door is closed for 5s. Keep your home protected, even though you overlook to lock it on occasion.
Emergency charging: The biometric doorknob is powered by 4 AAA batteries (not included). As well as, the smart doorknob comes with a usb-c port for emergency use. But it can’t be charged and can only be unlocked in an emergency when the battery is dead. Or you’ll be able to use a spare key to unlock it.
Customer Enhance：Fingerprint door lock provides a 30-day return policy, 12 months change lock. 24 hours email or phone technical Enhance.