Open the door with style and with convenience with the round electronic deadbolt from Sure-Loc Hardware. Complete this set with your choice of passage or handleset. Best used for entrance doors, garage doors, where security is desired without the hassle of a key. Features: • Includes: deadbolt, thumb turn, screws, installation instructions, backset, strike plate and keys • Operates on four AA batteries, no hard wiring required • Warning light and sound to indicate low batteries • Optional auto locking function • One-time use code option • Entry codes can be four to six digits • Programmable up to ten entry codes • Single touch locking • Key operable • 25 year mechanical and one year electronic warranty