Bluetooth link for remote unlocking via Tuya app. Automatically lock, 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. Unlocking method: Fingerprint, Password, Card, key, App. Alarm type: Low battery alarm/pry door alarm.Emergency power supply: Type-C 5V-2A. Power supply: 4 AAA battery. Working temperature: -20 to +50°C.
Working humidity: 40% to 85% (No condensation). Adapt to door thickness: 35-50mm.