What are the fingerprint unlocking functions of this product?
The unlocking function includes: fingerprint unlocking, passwordunlocking, key unlocking, and Bluetooth APP unlocking
What type of door is suitable for?
Applicable for wooden or steel doors with a thickness of 35-55mm
Where does it apply?
Suitable for residential regions , apartments , offices , office buildings ,etc
Can I charge it and use it?
It cannot be used for charging all the time, and the socket is only used for emergency charging and opening the door when the battery is dead.
What warning will be issued when the battery voltage drops to low?
The buzzer sounds once, and the reader flashes green and red; The mobile app will receive a notification message that the battery is low.