Fingerprint Door Lock-Smart knob, Biometric Locks, with App/Code/Backup Key/Fingerprint/IC Card, Smart Knob Keyless Entry Lock

【5 Multiple Ways To Unlock】: These black door knobs have 5 unlocking methods,Fingerprint + Passcode + APP Control+ IC Cards (2 PCS) + Physical Keys (2 PCS). The fingerprint door knob supports to add: fingerprints+ group passwords+ pcs IC cards.【Easy Installation】No wiring or drilling required. This door lock fits doors with a thickness of 1-1/8 inches to 2-1/8 inches (30mm-55mm) and is compatible with both left- and right-hand doors. Ideal for bedrooms, front doors, and interior doors.【USB Emergency Power Supply】: The finger print door knobs has a low battery alarm function. When the battery is out of power, you can use the spare key or USB port for emergency charging and unlocking. Normal use requires 4 AAA batteries (not included).【TUYA APP Smart Control】: You can lock/unlock the door, share electronic codes, view log records, alarm prompts, manage users through the "TUYA" App link, unlock and manage your smart door lock more conveniently. (Bluetooth link, APP does not charge any fees)【Accurate Fingerprint Sensor】Featuring upgraded fingerprint recognition technology with a 99% accuracy rate, this front door handle unlocks your door in just 0.2 seconds. The fingerprint reader has a curved design, making it suitable for fingers of various sizes, with high sensitivity and a comfortable touch operation. Note: Tap "#" to wake up the lock before unlocking with a password.