Turck FCI-N1/8D06CTP-AP8X-H1141 Flow Sensor – Inline Sensor with Integrated Processor, Flow sensor for liquid media, Calorimetric principle, Adjustment via potentiometer, LED band, DC 3-wire, 19.2…28.8 VDC, NO contact, PNP output, Connector device, M12 × 1, Operating range 0.2…4 l/min, Sensor material ceramics/plastic, Seal made of FKM