LK0312 is a high-security Bluetooth smart lock engineered to upgrade access control for modern homes, apartments, and commercial spaces. Featuring a high-grade security cylinder and multiple entry methods, it provides convenient keyless functionality without compromising safety.

• 5-in-1 Keyless Access: Unlocks via fast biometric fingerprint recognition, custom digital passwords, RFID cards, mechanical backup keys, or smartphone control using the Tuya / Smart Life app.

• High-Security Build & Grade C Cylinder: Constructed from robust anti-rust zinc alloy in a sleek black and silver finish, paired with a Grade C lock cylinder for advanced protection against forced entry and lock-picking.

• App & Cloud Management: Connects via Bluetooth (BLE) to the Tuya Smart Life ecosystem for easy user management, access log history tracking, and granting temporary passcodes to guests. Supports cloud data storage options.

• Door Compatibility & Power: Designed for wooden, steel, stainless steel, and aluminum doors with a thickness between 38mm and 55mm. Powered by 4 × AAA batteries with an integrated emergency USB Type-C interface for external power if batteries drain.