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Testo 417 | Vane anemometer + hood set in bag

Contact Instrument Solutions

The Testo 417 anemometer features a fixed 100 mm vane to measure airflow, volume flow and temperature. Flow direction is also indicated in the display which makes this instrument an extremely versatile product especially when used in conjunction with the optional volume flow hood set and flow straightener (used for swirl type grilles and diffusers)

Hood sizes 200 mm diameter and 330 mm x 300 mm rectangular.


Features include:-

  • Direction of flow recognition
  • Temperature, flow and volume flow measurement
  • Multi-point and timed mean calculation
  • Max/min values
  • Hold button to freeze readings
  • Display light
  • Auto Off function

For details of the optional Testo volume flow hood sets please see separate entry within the air capture hood section of the web site. This is ideal for testing ventilation systems to Part F of the UK Building Regulations. UKAS calibrations for air volume are also available from the BSRIA Instrument Solutions Laboratory. The flow straightener is used when measuring air volumes from swirl type grilles. Here this product eliminates false readings which can be created as the direction of flow from the swirl grille can either increases or decreases the speed of the anemometer.


Storage temperature      -40 to +85 °C

Operating temperature       0 to +50 °C

Battery type      9V block battery, 6F22

Battery life       50 h

Weight      230 g

Dimensions        277 x 105 x 45 mm

Material/Housing       ABS

Temperature probe type      NTC

Temperature measuring range       0 to +50 °C

Temperature accuracy      ± 0.5 °C

Temperature resolution      0.1 °C

Air velocity measuring range      +0.3 to +20 m/s

Air velocity accuracy      ± (0.1 m/s +1.5 % of mv)

Air velocity resolution      0.01 m/s

Support documents

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Testo 417 user manual.pdf Testo 417 user manual
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