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Climate measurement improved to the maximum.

testo 400 in laboratories and cleanrooms.

We recommend: Universal air velocity & IAQ measuring instrument testo 400

For high-precision measurements of all climate-related parameters in cleanrooms and laboratories

  • Intuitive measurement menus: Clearly structured measurement menus are stored in the measuring device and guide you safely and efficiently through the respective application.

  • Convenient measurement: Do you measure in environments where Bluetooth is not possible? No problem: simply insert the probe head from the Bluetooth handle onto the cable handle and you’re done.

  • High-precision probes: Fume cupboard probes for laboratories/cleanrooms; vane probes for laminar flow measurement; humidity probes with an accuracy of

  • Intelligent calibration concept: Only the probe heads need to be calibrated. You can carry on working with the measuring instrument, handle and another probe.

Precise measurement technology for laboratories and cleanrooms

High degree of precision is required

The specially developed, high-precision probes support you in these applications, among others:

  • Highly accurate and position-independent differential pressure measurement (only with testo 400)

  • Reliable measurement of laminar flows

    Accurately recording even the smallest differences in flow

  • Accurately recording even the smallest differences in air velocity, from 0.02 m/s

  • Measuring humidity in critical processes with an accuracy of 1 %

High degree of precision is required

The specially developed, high-precision probes support you in these applications, among others:

  • Highly accurate and position-independent differential pressure measurement (only with testo 400)

  • Reliable measurement of laminar flows (laminar flow)

  • Accurately recording even the smallest differences in air velocity, from 0.02 m/s

  • Measuring humidity in critical processes with an accuracy of 1 %

High degree of precision is required

The specially developed, high-precision probes support you in these applications, among others:

  • Highly accurate and position-independent differential pressure measurement (only with testo 400)

  • Reliable measurement of laminar flows

    Accurately recording even the smallest differences in flow

  • Precisely detect the smallest flow differences from 0.02 m/s

  • Measuring humidity in critical processes with an accuracy of 1 %

High degree of precision is required

The specially developed, high-precision probes support you in these applications, among others:

  • Highly accurate and position-independent differential pressure measurement (only with testo 400)

  • Reliable measurement of laminar flows

    Accurately recording even the smallest differences in flow

  • Accurately recording even the smallest differences in air velocity, from 0.02 m/s

  • Measure humidity in critical processes with an accuracy of 1 %

Probes for measurements in clean rooms and laboratories

  • Digital Pt100 temperature probes

  • Digital probes for humidity and temperature

  • Digital probes for flow measurements

Brochure

Measurement technology for cleanrooms

Measure precisely. Qualify safely.
Precision measurement technology and services for cleanrooms. From Testo.

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Configurator

Product consultant

Customised multifunction

  • Put your own combination together:

  • Measuring instrument, probes and accessories

  • tailored to your application

Multifunctional measuring instrument testo 440

More details

The alternative: testo 440 compact

  • Clear display

  • Easy button operation

  • Measurement data storage in the instrument

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Air velocity & IAQ measuring instruments

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Everything else you need to know about the testo 400 and other measuring instruments for laboratories and cleanrooms

testo 400 brochure

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Overview of the measurement menus

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Measuring devices for the cleanroom

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Measuring instruments for laboratories

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