Description Brand new Smartcode electronic lighted number deadbolt. Smartkey technology. Adjustable latch, 2 3/8 in. and 2 3/4 in. For door thickness of 1 3/8 in. to 1 3/4 in. Lifetime warranty. For use on exterior doors where keyed entry and security is needed Featuring SmartKey® re-key technology; re-key the lock yourself in seconds in 3 easy steps Keypad stays lit for 30 seconds after inactivity Customized automatic door locking after 30 seconds for peace of mind Lifetime mechanical and finish warranty, 1 year electronics Fits door thickness of 1-3/8-in to 1-3/4-in