Alarm Infrared Beam Sensors are designed with rainproof cover,all-weather integrated structure design of fully sealed rainproof High-power transmitter, 90% sensitivity margin, high-power infrared transmitter-receiver pair tube, low-power processing technology lightning protection circuit design.High level of anti RFI/EMI capability and unique digital filter circuit design. Resistant to strong light up to 50,000 LUX, built-in automatic adjustment of the strong light filter system, to avoid the impact of strong light or car lights.