Opto-sensor, reflection light sensor with adjustable background suppression, operating voltage 24,250 VAC / 12,250 VDC, max. range 2000 mm, plug, 1/2', 4-pin, rotatable by 90°, protection class IP67, 5-segment LED display, signal display, button lock, switch-on and switch-off delay adjustable between 8 ms and 16 ms, operating voltage: 12,250 VDC or 24,250 VAC, relay output