... beam detector, 2.infrared beam detector with PC material 3.ABT-100,ABT-80,ABT-60 is available 4.outdoor usage beam detector :Product name: wired outdoor infrared beam detector ABT-80 1.wired dual beam detector,2.infrared beam detector with PC material3.ABT-100,ABT-80,ABT ... filter wave, its anti-interference of light arrive at IP85. wired outdoor infrared beam detector ABT-80 (two beams)