Kwikset 92640-001 Contemporary Electronic Keypad Single Cylinder Deadbolt with 1-Touch Motorized Locking, Satin Nickel Keyless entry with a motorized driven deadbolt for 1-touch locking, low battery indication, and easy install with just a screwdriver For use on exterior doors where keyed entry and security is needed.Customizable automatic door locking after 10-99 seconds for peace of mind 6 customizable user codes along with temporary codes that can be used just once, perfect for visitors and service personnel Single cylinder electronic deadbolt operates by keypad or key outside and thumb turn inside, fits door thickness of 1-3/8 in. to 1-3/4 in. Includes an adjustable latch to fit all standard door preparations