This fingerprint door lock combines biometric recognition, a passcode keypad, and keyless entry into a single door handle unit designed for residential and light commercial use. The exterior shell is constructed from zinc alloy and reinforced ABS, providing a durable finish that resists daily wear and corrosion. The capacitive fingerprint sensor captures high-resolution ridge details, enabling identification speeds under 0.5 seconds with a low false acceptance rate. A backlit numeric keypad offers an alternative entry method, supporting user codes up to six digits.

The lock operates on four AA batteries, delivering consistent performance for approximately ten months under standard usage conditions, with a low-battery alert integrated into the keypad. The internal motor mechanism is built with metal gears and a quiet rotary actuator, ensuring smooth latch retraction without excessive noise. The device also includes a mobile application that connects via Bluetooth, allowing users to manage access remotely, generate temporary codes, and view entry logs. The black finish is applied through an electrostatic coating process, which helps prevent fingerprints and smudges from marring the surface.

For installation, the lock fits standard 60-70mm door thicknesses and requires only a screwdriver, with all necessary hardware included in the package. The working temperature range spans from -10°C to 55°C, making it suitable for indoor environments including bedrooms, home offices, hotel rooms, and apartment units. From a reliability standpoint, the lock undergoes cycle testing exceeding 100, 000 opening and closing events before shipment, reflecting its mechanical endurance. The PCB is coated with a conformal layer to mitigate moisture and dust ingress, though the unit is not rated for outdoor exposure.

The APP interface supports both iOS and Android platforms, with a straightforward pairing process that does not require a hub or subscription. Users can store up to 50 fingerprints and 50 passcodes, offering sufficient capacity for families or small office teams. The emergency power port at the bottom allows backup charging via a 9V battery if the main batteries are depleted. Priced affordably at under eight dollars, this smart door lock delivers essential security features without exceeding a modest budget.

The combination of fingerprint, keypad, and app-based access eliminates the need for physical keys, simplifying daily entry routines while maintaining a clean aesthetic. The product is suited for those seeking a basic smart lock that prioritizes ease of use and straightforward installation, with no complex wiring or professional assistance required. Its compact form factor fits both interior and exterior doors where moderate security is needed, though for primary entry points, additional deadbolt reinforcement is recommended.