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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

  • No problem: simply switch the probe head over from Bluetooth to the cable handle and you’re ready to go.

  • 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

  • Reliable measurement of laminar flows

    Accurately recording even the smallest differences in flow

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

  • Reliable measurement of laminar flows

    Accurately recording even the smallest differences in flow

High degree of precision is required

  • Reliable measurement of laminar flows

    Accurately recording even the smallest differences in flow

Probes for measurements in clean rooms and laboratories

  • Digital Pt100 temperature probes

  • Digital probes for humidity and temperature

  • Digital probes for flow measurements

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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

  • V spletnem konfiguratorju lahko preprosto združite svojo osebno kombinacijo merilnih instrumentov, sond in dodatkov.

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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instrumenti za merjenje hitrosti zraka in kakovosti zraka v zaprtih prostorih

Product comparison

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

Brošura za testo 400

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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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testo Smart App

One App for all applications

The testo Smart App guides you quickly and easily through measurements on refrigeration, air conditioning and heating systems.

Now new:

PRO measuring programs for increasing the efficiency of your applications

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Multifunctional

Združljiva z vsemi merilnimi instrumenti z Bluetoothom

Efficient

Direct report dispatch by e-mail

Fast

All measurement values at a glance

Easy

Intuitive measurement menus

Clever

Free download, free use

NEW

PRO measuring programs