Flow monitoring, immersion sensor with integrated evaluation electronics, operating voltage 19.2.28.8 VDC, immersion sensor, sensor for liquid media, calorimetric function, adjustment via potentiometer, display via LED chain, temperature monitoring 0...+80 °C, two independent switching outputs: S1: flow monitoring, S2: temperature monitoring, DC 4-wire, 21...26 VDC, normally open, PNP output, plug device, M12 x 1