GE Choice-Alert Door/Window Sensor

GE's Choice-Alert Wireless Door/Window Sensor indicates when a door, window, or gate has been opened indoors or outdoors. Operates up to 150 feet away from the control center. Easy installation - secure with screws or double-sided tape. No wiring! This weather-resistant sensor operates on a single lithium battery (not included). Included are the sensor with magnetic contact, two screws, two screw caps, two plastic anchors, mounting plate, and two double-sided pieces of tape. 

NOTE: The sensor must be used with item # 7538 Choice-Alert Wireless Control Center (sold separately).