Velocity
The flow measurement range is divided into three sections; low speed (thermal probes), medium speed (vane probes) and high speed (Pitot tube). Testo has a wide range measuring instruments for velocity which are ideal for a number of applications. The Testo 405 is a thermal anemometer with a telescopic handle is ideal for measuring air flow, volume flow and temperature. The Testo 410 pocket line vane anemometer measures air speed and temperature making it ideal for quick spot checks at air outlets. The Testo 417 large vane anemometer is compact with a built-in flow/temperature vane to measure flow speed, volume flow and temperature. Testo 425 compact thermal anemometer directly shows volume flow in the display and offers accurate volume flow calculation. In addition it is possible to switch to current temperature reading. >more information
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