Chamberlain Wireless Pedestrian & Vehicle Alert System with Receiver 900ft. Transmission Range, Model# RWA300R
Protect driveways, garages, decks, patios, businesses, storefronts, entryways and outbuildings. State-of-the-art wireless alert system features adjustable infrared sensors that transmit signals over 900ft. to the receiver and detect motion up to 30ft. away! Easy to install, no wiring required. Meets or exceeds all federal regulations. Easily expands to work with up to 4 sensors, or run two or more complete systems to monitor 8 or more areas at once. Set includes one receiver and one sensor. U.S.A.