Smart Anti-theft Security Door Lock

Features:
* Multiple Unlock Ways: BT unlock, Tuya APP remote unlock, password unlock, IC card unlock, keys unlock.
* Supported Tuya App: Tuya App is a smart lock app, with multiple functions including send temproary passcode/ekey remotely, manage passcode/ekey, view access logs, open the lock by APP remotely or nearly, passage mode setting, etc.
* Mechanical Key Unlock: Mechanical key external power supply interface as spare in case the batteries are dead.
* Low Battery Alarm: When the battery power is lower than 4.8V, the alarm is activated each time with the unlock to remind you to replace the battery in time, and the lock could be unlock 200 times after first alarm.
* Easy Change of Batteries: With the easy getting change of batteries, it saves up and be more convenient when power off. Battery with long life.
* Anti-lock Key: Press to go to normal open work mode. Long press the Anti-lock button until it output DiDi, then it go to anti-lock.
* Copper lock cylinder, 304 stainless steel rear lock gall. Resisting sawing and destruction. Easy installation and safety guarantee.