Ziehl NS 20 Control relay No. of relay outputs: 1

Level relay NS 20 for level monitoring of conductive liquids. Use with three electrodes as MIN / MAX control for filling or emptying a container, with two electrodes as overfill or dry run protection The AC path is completely DC free. This is no electrolytic degradation of the electrodes and no explosive gas formation. When electrodes use insulated attached conductors. In conducting vessels, the vessel wall serves as the base electrode.

Price: 124.99 from Conrad Electronic