About this item Electronic single-cylinder deadbolt with customizable keyless entry, 1-touch/timed locking, and low-battery indication Create six customizable user codes plus single-use temporary codes for visitors or maintenance workers Customizable automatic door locking after 10-99 seconds for peace of mind Operates by electronic keypad or traditional key outside and thumb turn lock inside Fits door thickness of 1-3/8 inch to 1-3/4 inch; includes an adjustable latch to fit all standard door preparations Includes all necessary hardware components; easy to install with a Phillips head screwdriver; for indoor use only