The Ideal Security SK634 7 Piece Home Security System is a wireless alarm system that's totally customizable and, best of all, it calls you without any monitoring fees. This collection includes a motion sensor, 2 wireless door and window contacts, 2 remote controls, a telephone dialer, and features a loud 105-decibel siren. A land line connection is required and the device can be linked to up to 16 additional accessories with 10 on-screen zones. About Ideal SecurityIdeal Security's tradition of innovation began back in 1956 and the experience gained over this past half-century has given them the experience to be a reliable market leader. Their focus on creating value for their customers and consumers has led Ideal Security from humble beginnings in Lasalle, Quebec to an impressive operation spanning several factories and warehouses throughout Quebec, Ontario, and Pennsylvania. This network meets the demands of North America with new concept hardware and security programs, patented products that are environmentally responsible and quality oriented to provide the best security available, Ideal Security.