光电开关（长距离内，感应非金属，金属目标物，透明物除外）：/Opto sensor (long distance, target material is metal or nometal except transparent )

l  极强的抗干扰能力/Strong anti-interference ability

l  背景抑制漫反射,反射板式,对射式/Background suppression, retroreflective, through beam

l  远距离（漫反射可达50米）激光传感器,TOF原理设计，黑白色差极小/Long distance:(diffuse proximity can reach 50 meters) laser sensor, principle of tof