Turck FTCI-1/2D10A4P-LI-UP8X-H1141 Flow Sensor – Inline Sensor with Integrated Processor, Compact inline flow sensor, Calorimetric principle, Monitoring of flow rate, Monitoring of the medium temperature, For water/glycol mix, Parametrized via button, Protected by software code, DC 4-wire, 21.6…26.4 VDC, NO/NC prog., PNP output, 4…20 mA analog output, Analog output provides a current signal proportional to the flow rate for the overall operating range, Plug-in device, M12 x 1