Round Fingerprint Bluetooth Smart Lock Door Knob

Product Features - Supports multiple unlocking methods of biometric fingerprint, mechanical key and mobile phone - Bluetooth link for remote unlocking via Tuya app - Automatically locks and no need to worry about forgetting to lock the door - Ball type door lock can directly replace old door lock without drilling - Compatible with left and right door opening directions   - Application Type: Tuya / Smartlife - Connection Method: Bluetooth - Unlocking method: Fingerprint, Key, App - Fingerprint capacity: 20 - Mechanical key: 2 - Lock Core Level: B - Alarm Type: Low battery alarm/Pry door alarm - Emergency Power Supply: Type-C 5V-2A - Power Supply: 4 AAA battery - Usage Time: 8 months - Working Temperature: -20 to +50°C - Working Humidity: 40% to 85% (No condensation) - Packing Size: L57*W25*H85mm - Adapt to Door Thickness: 35-55mm - Panel Material: Aluminum Alloy