... series Photo Switch,Photoelectrical Sensor 1, Principle:photoelectric sensor makes use of inspected object’s sheld and reflection to infrared lights, ... ,etc.Function and struction can be changed directly with foreign similar products.2, Inspection mode:direct reflection ... Timer,Timer Relay, Solid State Relay, Proximity Sensor, ,Pressure sensor ,load cell sensor, KNE KSC box, Rotary Encoder and computer ...