Various Access : Ydm7116 Has Multiple Options To Access The Lock- Fingerprint, Pin Code, Rfid Card, Key Override, Bluetooth (Via Yale Link App).. Peace Of Mind, Anytime : Yale Is Where You Are. Lock, Unlock, Share Access, See Who Comes And Goes Using Your Yale App - Anywhere, Anytime.. With Yale App And Wifi-Bridge You Can Lock Or Unlock Your Door, Share Keys With Family And Friends, Get Notifications When Someone Comes Home And More, All From One Mobile App.. Convenience: It Can Upgrade Your Existing Door Lock And Supports Door Thickness From 40 Mm To 80 Mm. No Wires, No Hassle And Easy To Replace, With 4 X Aa Batteries And A Warning When They Are Running Low. The Lock S Memory Will Also Ensure All Credentials And Settings Remain When Changing The Batteries, Making This Simple And Hassle Free.. Automatic Locking: Auto-Lock Automatically Secures Your Front Door Once It's Closed. Enjoy Peace-Of-Mind Never Worrying If Your Door Is Locked.. Warranty: 3 years from the date of purchase