... ; 3.CE certification. SG series Photo Switch,Photoelectrical Sensor 1, Principle:photoelectric sensor makes use of inspected object’s sheld ... of objects.The move distance is much large than proximity switch,up to 10m;can drive relay,AC contactor or ... flowmeter,Timer,Timer Relay, Solid State Relay, Proximity Sensor, ,Pressure sensor ,load cell sensor, KNE KSC box, Rotary Encoder and computer integrated ...