... wires,AC 2/3 wires; 3.CE certification. SG series Photo Switch,Photoelectrical Sensor 1, Principle:photoelectric sensor makes use of ... Ouput:NPN,PNP(normal open or normal closed,current:100--300mA),relay,logicgate,etc,movement distance within 5cm--10m selectable ... Sensor, ,Pressure sensor ,load cell sensor, KNE KSC box, Rotary Encoder and computer integrated control system etc. They are widely ...