Type: Digital Electronic Combination Lock MK734.
Material: Zinc Alloy.
Input Voltage: DC 6.0 V.
Power supply: 4×AAA alkaline batteries.
Static power: ≤ 20 uA.
Dynamic power: ≤ 180 mA.
Undervoltage alarm:  3.5 V.
Use condition: 
   Temperature: -20℃ - 55℃.
   Humidity: 5% - 95%
Applicaton: Ideal application for schools, homes, clubs, gym and personal lockers. Suitable for all types of lockers / doors - plastic / metal / laminate.

Features:
1. Zinc alloy lock body, strong and durable.
2. Quick and easy operation.
3. Easy to set your own code.
4. Easy to change battery.
5. LED in 2 colors for lock status(green, red).
6. Suitable for steel, wooden and plastic doors with all kinds of thickness.