Item No: ECO-242 Door Lock
1.Material: Aluminum Alloy
2.Working Voltage: 4AA Alkaline Batteries
3.Unlock Ways: Fingerprint, password, card, key, Tuya Networking
4.Low Voltage Alarm: Unlocking alarming when voltage lower than 4.8V
5.Emergency Charge: External charging with standard MINI interface USB
6.Mechanical Keys: 2 pieces