Proximity switch, inductive sensors, range: E57 miniature series, connection: 3-wire, design (external dimensions): M8 x 1 mm, rated operating voltage: Ue= 10 - 30 V DC, rated switching distance: Sn= 2 mm, installation type: non-flush, switching type: NPN, plug connection M12 x 1, contacts S = normally open: 1 S, material: stainless steel, protection class: IP67, standards and regulations: IEC/EN 60947-5