Putmax Smart Door Lock , Keyless Entry Door Lock Handle with Keypad, Biometric Door Lock with Door Lever, Electronic Deadbolt for Airbnb, Home, Apartments and Offices,Sliver, 【Smart Lock Technology】This smart lock with handle combines 3 keyless entry methods into 1 smart lock, Fingerprint+ Passcode+ Backup Emergency Key. Highly accurate fingerprint recognition, unlock the door within 0.3 seconds, able to register up to 50 unique fingerprints, allows you to get rid of the annoyance for keys seeking., 【Modern Design and Durability 】: The door handle with keypad have an elegant silver design, which is made of zinc alloy material, wire free, anti-corrosion, sleek and modern. It is competent to both indoor and outdoor environments and great for house, apartment or other private spaces., 【Convenience & Safe Life】: The biometric door lock providing your private space with an upgrades level of security by using Scramble PIN Code, Auto-Locks and Unlocks, low battery warning, emergency power supply, no worry about out of battery and locked outside., 【Fast and Easy Set-up】: This smart fingerprint door lock is easy to install and program, all you need to do is just follow the detailed booklet in the package. This fingerprint deadbolt fits US standard door, Backset 2-3/8″(60mm) and 2-1/8″(70mm), door thicknesses from 1-3/8'' to 2-1/8''(35mm -55mm). Reversible lever locking suitable for both left handed and right handed doors., 【Excellent Customer Support】: We are committed to creating customers an excellent experience on fingerprint door lock and promise you a 1-year warranty and life-time technical support. Any question such as installation,missing parts, functional problems were guaranteed to be responded within 12 hours, please feel free to contact with our Putmax service team., ,