Velocity

Testo measuring instruments are equipped with special probes (Pitot tubes, thermal probes, vane probes), which allow highly accurate measurement in the three velocity ranges of flow velocity measurement:

lower range 0 to 5m/s: thermal probes
middle range 5 to 40m/s: vane probes
upper range 40 to 100m/s: Pitot tubes
 

Anenometers such as the testo 405, for example, are suitable for the measurement of volume flow and temperature determination in addition