IFM Inductive Sensor (normally open) made up of a white bronze coated M12 brass thread and a M12 electrical connector with gold plated contacts. This sensor also has an active face made up of orange polybutylene terephthalate (PBT). The electrical design for this sensor is a 3 wire DC PNP (2 wire NPN possible) and the operating voltage is between 10-30V DC.