Operates like any 3 digit dial combination lock, combines the keyed entry security of a deadbolt with the keyless flexibility of a safe lock * Single cylinder deadbolt installs like a standard deadbolt with just a Phillips screwdriver * When the patent pending Night Watch feature is engaged, the lock cannot be opened from the outside, even with a duplicate key, it can only be engaged or disengaged from inside the house. * Six way adjustable latch 2-3/8-Inch to 2-3/4-Inch backset, square, radius and drive in latch face options * Installs like a standard deadbolt with just a Phillips screwdriver, exceeds ANSI Grade 2 specifications