Lockly Secure Pro deadbolt smart lock is the world's most advanced smart lock. The patented PIN Genie digital touch screen displays an always shuffling keypad where the numbers displayed in a series of 4-buttons and is different every time when you approach the door. While the access code remains the same, the location of where the number is located differs, making it hard for prying eyes to guess what the actual code is. The lock also offers the administrator ability to grant remote access, and issue digital keys with specific timed durations, even when the lock isn't connected to the internet, allowing guests to enter without using a smartphone. The advanced embedded 3D fingerprint sensor can store up to 99-fingerprints and recognizes only the original fingers scanned, making copied and lifted fingerprints useless. Manage and view access history from the comfort of your smartphone anytime with the Lockly iOS and Android app. The Pro series includes Lockly Secure Link Wi-Fi Hub compatible with both Alexa and Google Home enabling voice control and real-time status. Also included is a door sensor that notifies you when your door is open and shut.