IFM Inductive Sesnor (normally open) made up of a weld coated M18 brass thread and lock nuts with an M12 electrical connector with gold plated contacts; making it weld field immune. This sensor has an active face made up of black liquid-crystal polymer (LCP) with a polyetherimide (PEI) LED window. The electrical design for this sensor is DC PNP and the operating voltage is between 10-30V DC. The correction factor for this sensor = 1.