Smart Door Lock: Enjoy keyless entry door lock convenience via tuya app; fingerprint, keypad passcode,nfc card mechanical key; Perfect for keyless entry door locks, our system ensures effortless control over your homes security Fingerprint Door Knob & Advanced Biometric: The thumbprint door knob uses advanced biometric tech for 0.5-second unlocks; No fumbling with keysperfect as door locks for front door Advanced App Management: Seamlessly manage your deadbolt lock via the app: assign permanent/temporary access for family, guests, or deliveries, track entry logs, and enable silent mode for privacy Convenient Auto-Lock Feature: With the auto-lock function, this door knob automatically secures itself after a pre-set time, make your home more security Easy Installation: No drilling/wiring! Our fingerprint door handle fits 1.18"-1.97" thick wooden doors (left/right swing);fingerprint doorknob installs in minutes without professional help