Opto-sensor, one-way light barrier (receiver), operating voltage 24,240 VAC, max. range 150,000 mm, cable length 2 m, cable, 2 m, protection class IP67, ambient temperature: -40.+70 °C, modulation frequency A, requires transmitter with the same frequency, operating voltage: 24,240 VAC, semiconductor relay output, SPST, dark switching