This is the easy-to-install security system that sets up in minutes without complicated wiring or programming. The kit includes two door/window sensors, one motion detector, one arming/disarming keypad, and an in-home alarm base. When one of the sensors is activated, it triggers the alarm and sends an alert to your smartphone or electronic device via a free app. The app also enables you to instantly arm/disarm the system from your phone as well as adjust the sensitivity of the sensors to avoid false alarms. The three sensors and keypad mount easily using the included hardware (additional sensors and keypad sold below). The sensors are powered by batteries that provide up to two years of power, keypad’s battery provides six months of power, base plugs into AC.