1Multiple Applications: Active infrared barrier passage sensor is widely used in vehicle gate system, access control system, security alarm system and so on. 2Stable and Reliable to Use: Infrared barrier alarm can enhance the detector's ability to resist Rfi or Emi, lightning protection, etc., and adapt to harsh environments. 3Receiver Range: The receiver receiving distance is less than or equal to 15m/49.2ft, when there is severe weather such as heavy rain or fog, the distance will be shortened by 30%. 4Basic Parameter: Dimensions of active infrared radiation detector is about 100x35x40mm/3.94x1.38x1.57in, wavelength is 940nm, and the input power is Dc or Ac 12?24V. 5Ideal Choice: Infrared barrier detector is ideal for anti theft, alarms, safety devices and passage detectors, professional manufacturing, nice choice for your vehicle.