Opto-sensor, one-way light barrier (receiver), for water detection, operating voltage 10.30 VDC, max. range 4000 mm, cable length 0.15 m, connector, M12 x 1, 5-pin, protection class IP67, LED visible from all sides, operating frequency selectable to protect against mutual interference, operating voltage: 10.30 VDC, bipolar switching output, dark switching