【 3-in-1 Smart Lock】: This biometric door lock have 3 ways of keyless entry: fingerprint + PIN Code + Backup Mechanic Keys. The Smart lock with keypad also adopt latest biometric fingerprint access technology with accurate recognition rate and open the door just in 0.3 seconds. You can add up to 50 groups of fingerprints. No more fumbling around for keys when you go out..【 Solid Material with Widely Application】: The smart lock with handle is made of zinc alloy material, anti-corrosion, sleek and elegant with a simple, stylish look and providing a higher grade of security and privacy protection for your house, apartment, office, hotel or any other personal spaces..【 Installation Simplify】: This smart fingerprint door lock is distinguished from other app or WIFI smart lock which have equivalent value, fairer price, leave out a lot of complexities of installation and the problem of application compatibility. The whole process of installation could be finish within several minutes, it fits both left and right handed doors and no wiring and drilling needed..【Functions and Attentions】: The electronic door lever requires 4 AAA alkaline batteries (not included) and meets 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). Functions of passage mode, automatic locking mode, Scramble PIN Code, low battery warning, emergency power supply are all inclusive..【2 Ways to Unlock 】: Our door locks with keypads provide ways for you to get rid of keys: passcode, fingerprint,Of course two mechanical keys are included for emergency use. Our door locks spare you the trouble of lost keys!