Photoelectric sensor 1,Output:NPN or PNP,NO/NC; ... /3 wires; 3.CE certification. 2011--SG series Photoelectric sensor 1, Principle:photoelectric sensor makes use of inspected object’s sheld and ... Timer,Timer Relay, Solid State Relay, Proximity Sensor, ,Pressure sensor ,load cell sensor, KNE KSC box, Rotary Encoder and computer ... Guo) 086-13435730867(Peter Liao) 2011--SG series Photoelectric sensor