1.Inductive Proximity Sensors : M8 to M30,AC,DC,PNP,NPN,NO,NC ,Cable type or Connector type and also of any Dimension for any make substitute. Sensing Range:from:1mm to 15mm 2.Capacitive Proximity Sensor : M18,M30,PNP,NPN,NO,cable type Sensing Dist :8mm,15mm 3.Magnetic Proximity of any size 4.Optical Proximity Sensors :Sensing Range up to 500mm,24vdc,PNP,NPN,NO