hot-wire anemometer / portable / wireless / battery-powered
405 i

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hot-wire anemometer hot-wire anemometer - 405 i


  • Technology:


  • Other characteristics:

    portable, wireless, battery-powered

  • Air velocity:

    Min.: 0 m/s (0 ft/s)

    Max.: 30 m/s (98.43 ft/s)


•for measuring volume flow, air velocity and temperature
•Simple configuration of the dimension and geometry of the duct cross-section for determining the volume flow
•Convenient for working in ventilation ducts thanks to its telescopic tube, which can be extended up to 400 mm
•Really convenient to operate thanks to the testo Smart Probes App (e.g. easy viewing of readings, measurement data trend, log function)
With the testo 405i hot wire anemometer, you can measure air velocities, temperatures and volume flows. Via Bluetooth, the readings are transmitted wirelessly straight to the testo Smart Probes App on your smartphone or tablet. You can view the values conveniently and use numerous intelligent features:

Product Description
No more surprises: the testo 405i thermal anemometer with smartphone operation from the Testo Smart Probes series is ideal for carrying out measuring tasks in ventilation ducts. It is easy to use the anemometer to determine air velocity, temperature and volume flows. The testo 405i is also suitable for measuring indoor air velocity. Practical when, for example, you want to locate non-airtight windows. Cooling capacities and heating outputs can also be calculated when used in conjunction with the testo 605i thermohygrometer.

Operation independent of measuring location via your smartphone
The testo 405i hot wire anemometer combines professional Testo measuring technology with App-based operation. This means you benefit from numerous additional functions in your day-to-day work. With the testo Smart Probes App, you can view readings conveniently on your smartphone or tablet.