Optical sensors, reflex light barrier, M12 x 1, threaded design, range 0.8 m, 4-wire, DC PNP, operating voltage: 10...36 V DC, current consumption: 35 mA, light/dark switching programmable, plug connection, M12 plug connection, polarizing filter, function control output, housing material: brass optalloy coated, optics material: PMMA