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. With Yale Assure Lock Touchscreen Keypad Door Lock 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. Lose Your Keys, for GoodUnlock your door using your entry code on the keypad, and leave the bulky keychain behind. For use with your smartphone or smart home system, Yale Access Wi-Fi Kit is required (sold separately).Auto-Lock for Peace of MindYou didn’t forget to lock the door, your lock did it for you. Rest easy knowing that your door is locked every time you leave the house and when you go to bed at night. Easy to Install on Any DoorNot so handy, not a problem. Yale Assure locks are super easy to install and are guaranteed to fit standard doors (doors 1 to 3/4-inch to 2 to 1/4-inch thick. Doors under 1to 3/8-inch require thin door kit).Stop Hiding KeysSharing codes is the new hide-a-key. Give unique codes to friends, family, and other people you trust, and never put a key under the doormat again