Combined entrance lock. Made of zinc. Satin nickel finish. The set contains one hallway door handle and one keypad deadbolt with vandalism resistant Turn-Lock feature. Convenient keyless access. Illuminated keypad with wear-resistant coating prevents frequent usage patterns. 9-V battery included (average life of 3 years). 10,000 possible code combination. Easily programmable. 1-year limited warranty on electronic system with lifetime warranty on mechanical components and finish.