The Yale Assure Keypad Lever Lock is built for doors that don't need a deadbolt, the Yale Assure Lever Lock is well suited for side entryways, home to garage doors, basements and most interior doors. If there is an attempt to forcibly remove the lock, an audible alarm will sound. Equipped with a push button keypad featuring backlit numbers that won't wear off, you will always be able to enter your code correctly each time. You can create up to 25 codes to share with anyone who needs to gain entry to your door. The lock is set to automatically re-lock in 30 seconds upon closing. Press the lock button to wake up your keypad or lock your door. Locked out with no power? Using a 9V battery, you can power the backup terminal on the underside of the lock to give it enough juice to enter your code and your door or use the keyed override with two keys included. You can enable Privacy Mode by pressing the button on the interior side of the lock to disable user codes temporarily. Now you can watch your favorite show or take a nap without being disturbed.