The Testo 417 is a lightweight anemometer with built in 100mm vane to measure flow speed, volume flow and temperature.
Volume flow is shown directly in the display. It has accurate volume flow calculations due to the easy input to duct area. In addition, it is very easy to switch to the current temperature reading. the flow direction can also be shown on the display.
Timed and multi point mean calculation provides information on mean volume flow, flow speeds and temperature readings. The max/ min values can also be shown in the display.