Easy to install: Replaces your existing lever or knob on doors with a single hole (no deadbolt) that are 1-1/5" and 2-2/5"(30-60mm) thick with just a screwdriver.There are left and right handle side lock . Lock handle direction can not be reversiable , please choose left or right handle lock on the basis of your door direction.
Energy Saving Long Standby : 4*AA batteries support unlock about 6000 times(up to 10-12 months) with low power consumption. 4*AA batteries not included. It needs to replace the battery when the app remind that the smart lock is in low battery.
High identification semiconductor sensor : Lock adopts live semiconductor sensor, and 360-degree fingerprint recognition allows this lock to read your fingerprint within 1 seconds (false accept rate 1/1,000,000, false rejection rate 1/1,000,000). It works well with 5--75 years old.
Safe & Convenient: Anti-peeping password, support to input random digits before and after the correct code. Touch the screen to automatically wake up the backlit keyboard. Compatible with Android and iOS system, though free Tuya App (Download on App Store and Google play). You can switch auto-lock and passage mode , share e-key with people and receive real-time unlock notifications from anywhere.