This SmartCode electronic lock from Weiser takes home security into the digital age. It eliminates the need for a key, though you can still use one if you prefer. The electronic door lock/s keypad lights up for easier use at night. The latch is adjustable from 2 3/8" to 2 3/4" so it fits on most standard doors that are 1 3/8" to 2" thick. Made from brass and featuring a satin nickel finish, this SmartCode electronic lock is as attractive as it/s strong. You can reprogram the code in a few minutes to ensure that only allowed guests have access to your home. SmartKey technology means you can rekey the lock in minutes while it/s still attached to the door.