Proximity Sensor, 4-Wire DC Extended Range Complementary Output, 12mm Diameter, Tubular:Nickel Plated BrassRectangular, Standard, 8mm Sensing Distance, Unshielded, Complementary N.O. & N.C., NPN, PVC Cable
Reference : 872C-N8BN12-E5
12 mm Barrel Inductive Prox Sensor