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 range: 0...+100 °C (briefly up to +120 °C at ambient temperatures < 40 °C), DC 3-wire, 19.2...28.8 VDC, normally open, PNP output, plug device, M12 x 1