Fingerprint door lock made from zinc alloy in white finish. Designed for convenient, secure access using fingerprint recognition and an integrated handle for quick opening. Key benefits Fast, reliable access: fingerprint recognition in 0.25 seconds reduces wait time and avoids fumbling with keys. Secure multiuser support: stores up to 30 fingerprints for family members, staff, or frequent users. Durable construction: zinc alloy body resists daily wear for long service life. Flexible power options: runs on four AAA dry batteries (not included) and provides a USB port for emergency external power. Easy fit: adjustable center distance up to 70 mm to accommodate common door setups. Compact size: approximately 145 x 28 x 65 mm, suitable for interior and light exterior doors. How it solves common problems Eliminates lost or shared keys by letting authorized users unlock with their fingerprint. Restores access during battery failure using the USB emergency port or the included mechanical keys. Fits a range of doors without major modifications thanks to the adjustable center distance and compact footprint. Features and specifications Item type: fingerprint door lock Material: zinc alloy Color: white Power: 4 x AAA dry batteries required, not included; USB port for emergency power Fingerprint capacity: 30 Recognition time: 0.25 second Working temperature: 20 to 55 degrees Celsius Adjustable center distance: up to 70 mm / 2.75 inch Size: approximately 145 x 28 x 65 mm (L x W x H) What is included 1 fingerprint door lock 1 set of installation accessories 2 mechanical keys Typical use scenarios Home entry or bedroom doors where keyless, fast access improves daily convenience. Office rooms, shared workspaces, or small business doors where multiple users need controlled access. Storage rooms or cabinets that require secure but easy access without complex wiring. This fingerprint door lock offers a straightforward upgrade from traditional keyed locks, combining quick biometric access, backup power options, and a sturdy zinc alloy design for everyday use.