Fingerprint Door Knob, Smart Door Knob, Biometric Door Knob with Code, App Control, Auto Lock, Fingerprint Door Lock,Thumb Print Door Knobs for Bedroom, Office, Apartment

4-in-1 Smart Access & Large CapacityThis finger print door knobs offers four convenient entry methods: fast 0.1s fingerprint recognition, personalized passcodes (50 users), Bluetooth app control, and a backup mechanical key. Additionally, it features auto-lock, passage mode, privacy mode, and an anti-peeping keypad for enhanced security. Our bedroom door lock with code can store up to 50 fingerprints, the ultimate security solution for your smart home or office | Smart & Convenient APP ControlOur door knob fingerprint lock enables seamless user management via app. Easily share access rights, add household members, manage fingerprints and passcodes, and create permanent or temporary access passwords for family, visitors, couriers, or housekeepers. You can activate silent mode for undisturbed sleep, enable passage mode for free entry and exit, and conveniently review access history. Please note that app control is only available within Bluetooth range | Security & Usage TipsThe thumbprint door knob features a 5-second auto-lock function to keep your home secure. All fingerprint data is stored locally and will not be uploaded to the cloud, ensuring your family's privacy. For optimal performance, please make sure your finger is clean and dry, and fully register your fingerprint from multiple angles during setup to improve recognition success rates.Great fingerprint door lock for bedroom, living room, apartment etc | Rugged Design Long Battery LifeThis thumb print door lock is crafted from robust aluminum alloy, ensuring not only safety and durability but also outstanding battery life. To guarantee optimal performance, the product does not come with a pre-installed battery; we recommend using four AAA alkaline batteries for up to 6 months of continuous use. Low battery alerts and an emergency power bank port completely eliminate your power anxiety | Easy InstallationThe door knob with fingerprint lock is designed for US standard doors with a thickness of 1-3/8" to 2"(35mm to 55mm). Please confirm your door dimensions before purchasing. The smart bedroom door lock can be easily installed with a screwdriver. Tip: When installing the smart lock for the bedroom door, the "UP" mark on the top of the inner and outer handles should be aligned to ensure a secure installation