Optical sensors, reflex light barrier, cuboid-shaped plastic, range 2 m, 4-wire, DC PNP, operating voltage: 10...30 V DC, current consumption: 22 mA, light/dark switching programmable, plug connection, M8 plug connection, polarizing filter, electronic lock, external teach function, front optics, housing material: housing: ABS LED window: SEPS button: SEPS, optics material: glass