Upgrade your deadbolt with the Assure Lock and enjoy the convenience of unlocking and locking your door using the backlit touchscreen keypad; you'll never have to carry around your keys again. Create unique entry codes for friends and family and remove codes whenever you need to. The lock is Grade 2 certified and backed Yale, the world's favorite lock since 1840. Get a Yale Smart Module to your Assure Lock to add it to your smart home.