testo 405 – thermal anemometer

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  testo 417, digital anemometer with 100 mm vane diameter

  Includes factory calibration protocol and 3 AA batteries

  The compact testo 417 anemometer with a built-in 100 mm vane for measuring air velocity and temperature is designed for determining flow velocity, volumetric flow, and temperature. The volumetric flow is displayed directly on the screen. Accurate calculation of volumetric flow is ensured by the easy alignment of the probe with the air duct. In addition, it is easy to switch to the display of the current temperature. The flow direction (e.g. supply or exhaust) is shown on the display. The averaging function over time and number of measurements allows obtaining averaged values of volumetric flow, air velocity, and temperature. An optional funnel set enables efficient measurements at ventilation grilles, round ceiling diffusers, and plate air valves. Min/max values can also be displayed. The Hold function allows you to freeze current measurement data on the display.

  • Determination of air flow direction
  • Measurement of temperature, air velocity, and volumetric flow
  • Averaging of measurement results over time and number of readings
  • Display of max/min values
  • HOLD function to freeze current readings on the display
  • Backlit display
  • Automatic power-off function
  • Built-in vane D100 mm
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  testo 420, volumetric air flow settings on large ceiling ventilation grilles

  testo 420 is an ideal solution for adjusting air volume flow on large ceiling air outlets. This lightweight instrument with a removable measuring hood ensures precise determination of volume flow even on swirl diffusers.

  Product advantages:

  • Measurement of air volume flow, temperature, and relative humidity on large swirl diffusers
  • Exceptionally lightweight design (less than 2.9 kg)
  • Accurate measurements even on swirl diffusers thanks to the integrated flow straightener
  • Quick setup, intuitive operation, and on-site report generation via the mobile app
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  testo 416, vane anemometer, 16 mm diameter, with app connection

  with a transport bag, batteries, and factory calibration protocol

  Simple, fast, and precise measurement of flow velocity and calculation of air volume flow in ventilation ducts.

  Greater flexibility during duct measurements thanks to the wired telescopic probe (maximum length 850 mm).

  Quick configuration via the app (duct settings), graphical data display, second screen functionality, and measurement data storage in the testo Smart App.

  Time-based and point-based averaging.

  The compact testo 416 vane anemometer with a 16 mm telescopic probe and app connectivity is ideal for simple, fast, and precise determination of air velocity and volume flow in ventilation ducts of air conditioning and ventilation systems.
  By connecting to the testo Smart App, you can configure the instrument, display readings (including as a second screen), store and document measurement data directly within the app.

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  The testo 400, a universal measuring instrument for microclimate monitoring

  Intuitive measurement assistants, including for HVAC duct measurements in accordance with EN ISO 12599 and ASHRAE 111, PMV/PPD and turbulence indices in accordance with EN ISO 7730 and ASHRAE 55

  • High-precision built-in differential pressure sensor, independent of positioning
  • Measure all indoor air quality parameters using a wide range of probes
  • Document results directly on site and send them via e-mail, or analyze them using the testo DataControl PC software