The GE Choice Alert Control Center and Window/Door Sensor Kit allows you to begin building a custom Choice Alert Wireless Alarm System. The kit includes a Choice Alert Control Center and Window/Door Sensor. The GE Choice Alert Control Center controls all sensors and accessories for the GE Choice Alert Wireless Alarm System by allowing users to arm/disarm the alarm, monitor sensor alerts, program up to 16 sensors, organize sensors into four easy-to-recognize zones (including one dedicated alert zone), and add/remove any number of Choice Alert accessories. The Choice Alert Window/Door Sensor monitors if a door, window, back gate, or shed is opened.