Position switch with roller and stainless steel piston plunger, Housing: Made of glass-reinforced technopolymer, one threaded M20x1,5 conduit entry and external parts in stainless steel (FP series), Contact block: 3NC slow action (B21), Head: With roller and stainless steel piston plunger with external parts in stainless steel, Protection degree: IP67 according to EN 60529, Positive opening: Yes.