Position switch with one-way roller, Housing: Technopolymer housing, two knock-out threaded conduit entries M20x1,5 and external parts in stainless steel (FX series), Contact block: 2x(1NO-1NC) snap action (B2), Head: With one-way roller with external parts in stainless steel, Protection degree: IP67 according to EN 60529 and IP69K according to ISO 20653.