Phone APP Control Zinc Alloy Touch Screen Smart Bluetooth V4.0 Door Lock Passwor

1. Mobile phone APP management door lock, remote send time limit key, close automatically 5 seconds lock. 
2. Digital panel, password button. 
3. Bluetooth 4.0 transmission protocol, user record management query. 
4. LED backlight source, set aside a key to open the door, and open the door record in real time. 
5. Door lock power is displayed in real time. 
6. User capacity: unlimited authorization code, password capacity of 20. 
7. Door opening method: password, mobile phone Bluetooth and key assignment. 
8. Purpose: wooden door 
9. Applicable door thickness: 40-55mm 
10 Power: 4 x AA alkaline batteries (6V)(not included).