Kwikset 99110-007 SmartCode Electronic Lock with Tustin Lever Featuring SmartKey, Lifetime Polished Brass Keyless entry convenience with a one-touch locking motorized deadbolt and easy install with just a screwdriver 8 customizable access codes for increased security and a 30 second auto-locking option For use on exterior doors where keyed entry and security is needed Keyed lever is reversible and mounts on both left and right handed doors. Back-lit keypad for increased visibility Includes a latch with an adjustable backset, 2-3/8" to 2-3/4", to fit all standard door preparations, 2 keys, and 2 interchangeable faceplates Please see Installation Manual and User Manual under Technical Specification section for additional information.