The SmartCode 913 Contemporary touchpad electronic deadbolt is a one-touch locking motorized deadbolt. With your personalized code, you can enter your home with the convenience of keyless entry and the back-lit keypad provides increased visibility. SmartCode is easy to install, program and use, and operates on 4 AA batteries. It also features SmartKey Security as the back-up keyway. The Venetian Bronze finish is hand-rubbed to reveal unique bronze highlights and provides a rich and warm complement to the product's style. Required door thickness- 1 3/8 to 2 inches.