Product Name Inductive Proximity Switch Model LJ18A3-8-Z/AY Theory Inductive Sensor Wire Type 3 Wire Type (Brown,Black,Blue) Switch Appearance Type Cylinder Type, Metal Shell Output Type NC PNP Detecting Distance 8mm Supply Voltage 6-36VDC Output Current 300 mA Detect Object Iron Column Sensor Diameter 18mm/0.7" Total Size 68 x 29mm/ 2.68 x 1.14 (L*Max.D) Threaded Diameter 18mm/0.7" Cable Length 1.2m/47 External Material Plastic, Metal