China digital electronic lock supplier: digital , different color finish available, keypad locks function by entry of a 4-digit code.

Specifications:
- Material: ABS plastic. 
- Door thickness: 1.2mm. 
- Finished: white, different color available. 

Features:  
1. Keypad locks function by entry of a 4-digit code.
2. Power supply: 3 X AA alkaline batteries.
3. Input Voltage: DC4.5V 3.Battery life: 20months.
4. Undervoltage alarm point 3.3±0.2V.
5. Use condition: temperature: -15℃~65℃; humidity:5%~95%.
6. Working modes: Master code, Jump code and User code. 
7. Emergency power supply.