By means of a sensor element and auxiliary energy a temperature difference is used to convert the actual flow velocity into an electrical standard signal. This electric signal changes in proportion to the flow velocity and can be further processed.


With the flow measurement technology from octogon, even the smallest flows are recorded quickly and with high precision using the calorimetric measuring principle.


The flow sensors and flow monitors are intended for use in applications in which flow is required as a trend indicator, including in air conditioning, ventilation and heating technology and in many industrial areas. Heating, ventilation and air conditioning systems, fire extinguishing systems, aggregates, extractor hoods, filter monitoring, process control, fuel cells and gas measuring stations are further application examples of our flow sensors.

Octogon Flow
Input 0...10 m/s up to 0...100 m/s (gases)
Output 4...20 mA
Supply 24 VDC
Process connection 1/2" / 3/4" / 1" / 1,5" / 1/2NPT
Elecrical connection M12x1 / Deutsch DT04 / SuperSeal 1.5 / Bayonet / Valve / MIL
Temperature range 0...+60 °C (ambient)
Limit value contacts None
Protection class at least IP65
Adjustment in factory