This Biometric Door Lock is as smart as it is elegant, providing your room with an added level of safety and security without announcing it to the world. With a soft unlocking motion, it is ideal for inner doors of residential, apartment, or other private spaces.
Two modes of unlocking the Biometric Door Lock: Using your fingerprint and an emergency key. After registering your fingerprint, the biometrics technology with a 98% recognition rate allows you to never carry the key when you go out. The two mechanical keys just work as an emergency unlock method.
The Biometric Door Lock just needs 4 pcs AAA alkaline batteries and lasts for about 1 year. When the battery is low, a red light will flash to remind you to change them. There is a USB interface for you to provide power via USB cable to unlock for emergencies.
Fits most standard residential doors with applicable door thickness between 35mm to 55mm (1.4" to 2.2") and the adjustable deadbolt mortise is 60mm to 70mm (2.36" to 2.75").