Video-Trainings: testo 400 and testo 420

With the testo 400 and its broad range of probes, norm-compliant flow velocity measurement and documentation, air flow measurement has never been easier.

In combination with the testo 420 Flow Hood, you can now also measure volume flow at large vents.

  • Connect testo 420 with the testo 400
  • Carry out measurement
  • Send measurement report

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