Protect driveways, garages, decks, patios, businesses, storefronts, entryways and outbuildings. State-of-the-art wireless alert system features adjustable infrared sensors that transmit signals up to 900 feet (actual range will be affected by the natural terrain, building materials and other nearby RF transmissions). 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. U.S.A. Application: Driveways, garages, decks, Range (ft.): Up to 900, Detections Motion (ft.): 30, Kit Includes: One receiver, one sensor, Battery Type: (4) AA, Battery Life: Up to 2 years on sensors, Material: UV protected plastic Transmitter is weatherproof Sensor board has a special conformal coating to insure reliability Ignores birds and small animals Sensitivity controls Flexible swivel mount Up to 4 sensors can transmit to one receiver Receiver: 120V Receiver includes battery backup and one-hour mute button Includes 10 Amp output so that it can be tied to another alert device, lights, siren, etc. Extended range in any weather from -40°C (-112°F) to +100°C (+168°F) The actual range you experience will be affected by the natural terrain, building materials and other nearby RF transmissions Up to 2 years of battery life on sensors, depending on use (Lithium batteries recommended for colder environments)