Color: Blackca91 Overview This intelligent door lock combines multiple entry methods, flexible power options, and wide compatibility to secure residential and commercial doors. It is designed for quick installation, reliable operation, and convenient remote management. Key features and benefits Multiple unlocking methods: Tuya APP control, fingerprint, password, IC card, automatic lock, and mechanical key for maximum flexibility. Use the method that fits each situation. Remote control and temporary access: Manage locks from anywhere via Tuya APP and create temporary remote passwords for visitors, service personnel, or short term access needs. capacity user storage: Stores up to 100 fingerprints and 100 password sets, suitable for family homes, small offices, or shared spaces. Power and emergency backup: Primary power uses 4 AAA batteries (not included). A builtin rechargeable power option is supported and emergency USB power supply is available when the lock runs out of power. Mechanical key access is also provided for complete redundancy. Emergency USB charging accessory not included. Low battery reminder: Receive timely alerts so you can batteries before power loss occurs. Reversible and universal installation: Works on left and right handing and fits door thicknesses from 30 to 50 mm. Durable construction and finish: Aluminum alloy body with polishing surface treatment provides a refined appearance and long lasting durability. Wide door compatibility: Suitable for steel doors, wooden doors, brass doors, and stainless steel doors. Technical specifications Color: Blackca91 Unlocking methods: Tuya APP, fingerprint, password, IC card, automatic lock, key Fingerprint capacity: 100 Password records: 100 sets Battery type: 4 AAA batteries required, not included Emergency power: USB charging for emergency use, accessory not included Power supply: Built in rechargeable battery supported Door thickness compatibility: 30 to 50 mm Material: Aluminum alloy Surface treatment: Polishing Handle: Reversible direction; functions include biometric recognition, key, and keyboard entry Practical use scenarios Home entry and family access: Store fingerprints for household members, set temporary passwords for cleaners or delivery personnel, and receive low battery alerts to avoid lockouts. Small office or shared workspace: Assign password or IC card access to staff, manage access remotely via the app, and use temporary passwords for contractors or visitors. Rental properties and short term stays: Generate remote temporary passwords for guests, monitor access without on site key exchange, and rely on USB emergency power and mechanical key if battery replacement is delayed. Why choose this lock Flexible and secure access with multiple unlocking modes to meet everyday needs Remote management and temporary passwords streamline guest and service access Redundant power and mechanical key options reduce the risk of lockout Broad compatibility with common door types and a reversible handle simplify installation Package notes 4 AAA batteries are not included Emergency USB charging accessory is not included This product combines convenience, multiple layers of access control, and practical backup options to improve daily security and management of doors with 30 to 50 mm thickness.