The Testo 0635 9570 Digital Vane Probe Head, 16 mm, provides parallel determination of air velocity, volume flow, and air temperature. The vane probe head measures air velocity from 118 to 9842.5 fpm with an accuracy of up to ±(39.37 fpm + 1% of m.v.). It is also equipped with a temperature sensor to carry out measurements of air temperature.
To use the the vane probe head, simply plug it into the extendable telescope (sold separately) and use the handle adapter (sold separately) to attach them both to a universal handle with Bluetooth or cable (sold separately).