Features: Smart Secure and Reliable: The smart lock aims to deliver an easy and convenient lifestyle to you and your family on the foundation of the security of your home and your privacy. Multiple Ways to Unlock: Fingerprint, Pin Password, card, App Control, Mechanical Key. Quick Fingerprint Identification: Dentify in 0.3s360 fingerprint Recognization Store up to 100 fingerprints. Complete App Control: Press to Unlock, Manage Users, share Temporary / Period Password, Unlock Log, DIY Settings. Fit Most Standard Door: The diameter of the door hole1.5 ( 38mm ) -21 ( 54mm ).The thickness of the door1.38 ( 35mm ) 2.17 ( 55mm). Specifications: Product Name: Fingerprint Door Lock : WAFU Unlock mode: Fingerprint / Password/ Card/Mechanical Key/ APP Fingerprint capacity: 100 Password capacity: 100 Card capacity: 100 Read time: 0.5S Fingerprint read: semiconductor sensor Password length6 digits Phantom password length: 20 digits App support: tuya smart app / smart life app Working power4x AA battery ( Not included ) Color: Black Material: Zinc Alloy + Acrylic Applicable thickness: 35~55mm Emergency power supply: type-C power supply Door opening direction: left and right, both inside and outside Applicable door type: wooden door, metal door, etc.. Suit for: Residential, Apartment, Home, Office, Airbnb, Hotel Package Size: Approx. 22.5*20*9cm Package Weight: Approx. 1550g Package List: 1*front panel 1*rear panel 1*lock body 1*lock core 2*cards 2*keys 1*User Manual 1*bag of screws