This Tru-Bolt® combination provides keyless access to your home with a programmable digital keypad and thumb turn. The battery-operated digital keypad lights up and beeps (sound is optional) each time you enter a code to make opening the door easy and convenient. Two keys are included to use whenever you choose to operate the lock mechanically. The included auto-lock function locks the door when the keypad is used to enter your home. The lock is ideal for front doors, side and back doors, garage entry doors, storage units, or anywhere multiple users may need access.