Optical sensors, one-way light barrier, M12 x 1, threaded design, range 4 m, 3-wire, DC PNP, operating voltage: 10...36 V DC, current consumption: 25 mA, light/dark switching programmable, connecting cable, 2 m, PUR cable, 3 x 0.34 mm, housing material: nickel-plated brass, optics material: PMMA