Here is a smart gadget turns any deadbolt smart. The Lockly Access Touch 3D Fingerprint Reader can be attached to your existing deadbolt in minutes. It has a fingerprint recognition speed of 0.5 seconds. It uses AI to learn and improve response rate. This door lock can store up to 99 fingerprints.
You can use your smartphone to issue eBadges to your guests and keep up with the status of your door. You get notifications when someone unlocks your door. With the Secure Link WiFi hub, you can unlock/lock your door from anywhere and control it with Alexa.