Security meets technology with the SmartCode touchpad electronic deadbolt. This one-touch locking motorized deadbolt lets you inside your home with the convenience of keyless entry. Entering a code after dark is easy thanks to a back-lit keypad. SmartCode is easy to install, program and use, and operates on 4 AA batteries. SmartKey Security provides a back-up keyway. This single cylinder deadbolt can be locked or unlocked by using the keypad or key from the outside as well as the turn button from the inside. The Lifetime Polished Brass finish adds to the traditional look and feel of the product and makes a classic statement.