【Self-learning AI】Devo G2 smart lock will become more accurate with each use, so that you can easily enter without repeated attempts. Deadbolt smart lock tongue can be recognized in 0.25s and unlocked in 0.5s. A maximum of 100 fingerprints can be stored. 【5 Ways to Unlock】Devo G2 smart door lock provides 5 ways to Unlock. AI Fingerprint + App Control + IC Card + Passcode + Physical Key. Provide you with a convenient and safe home automatic door lock solution. 【App Control ＆ Durability】Fingerprint door lock integrates a variety of modern technology functions（Low battery alarm, Wrong input restriction, Anti-peeping password). You can control your keppad deadbolt via the Tuya smart app, manage users, access event history, generate a temporary password. IP54 waterproof, withstands temperatures from 5°F to 122°F. With 4 AA batteries(not included), the keyless entry door lock can last for 8 months. 【Auto lock & One-Touch Lock】Smart deadbolt lock has intelligent automatic locking and one-touch locking functions, you can customize the lock time 5-900s. Automatically lock after each door is closed, completely eliminating the trouble of forgetting to lock the door, providing you with all-weather security. 【Easy Installation】The installation process does not require professional tools or complicated steps, and is compatible with most American standard doors(Note:Check compatibility before purchase). In addition, Devo provides 12 months warranty and technical support for smart locks. If you have any questions, please feel free to contact us.