Position switch with roller piston plunger, Housing: Technopolymer housing, one threaded PG 11 conduit entry and external parts in stainless steel (FK series), Contact block: 2NC slow action (B34), Head: With roller piston plunger and external parts in stainless steel, Protection degree: IP67 according to EN 60529 and IP69K according to ISO 20653, Positive opening: Yes.