... ,AC 2/3 wires; 3.CE certification. SG series Photo Switch,Photoelectrical Sensor 1, Principle:photoelectric sensor makes ... can drive relay,AC contactor or logicgate.Widely used in process controling and monitoring system for spacing,positioning detection,auto ... electrical cabinet, power sub-station, industrial automation, etc.. In addition to supply MYPIN brand products, We have successfully cooperate ...