Features MAIN FUNCTION: When someone or other intruder comes into contact with 2 or more adjacent light beams, the alarm output triggers the infrared detector. SMART DETECTION: Adopting intelligent detection technology, this alarm can recognize small animal passing through without alarm, safe and reliable. INTRUSION ALARM: The infrared fence detector has tamper proofing, cutting prevention, anti infrared interference and other intrusion alarm functions. PLASTIC HOUSING: The transmitter and receiver shell is made of excellent ABS, with high density, strong toughness, high temperature and UV resistance. APPLICABLE SCENE: This active infrared sensor is suitable for fence installation in villa, factory, residential area, and school to prevent strangers from invading. Specification: Item Type: Infrared Fence Alarm Material: ABS, PC Working Voltage: AC12-18V DC12-24V Detection Distance: Approx. 100m / 328.1ft Detection Speed: 50-700ms Alignment Angle: Horizontal 180° (±90°) Protection Grade: IP65 Package List:1 x Transmitter 1 x Receiver2 x Clamps1 x User Manual Package List 1 x Transmitter 1 x Receiver 2 x Clamps 1 x User Manual