Give your home a greater sense of security! SecurityMan Air-AlarmII is a wireless LED touchpad security alarm system kit with doorbell for home and business. It is user-friendly easy to use protecting home/business at a minimum cost of investment. Do-It-Yourself installation and monitoring alarm system without monthly fees is a key benefit for users. The system will alert by phone calls to owner through a series of enlisted phone numbers. The owner can then dial into the host to arm or disarm using the phone's numeric keypad. Air-AlarmII system can be upgraded by adding up to 60 wireless sensors, sirens, and up to 10 remote controllers.