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Intuitive climate measurement

Comfort level measurement with the testo 400.

Air velocity & IAQ measuring instrument testo 400 with probes for comfort measurement

Measuring indoor air quality and comfort level

  • You can carry on working with the measuring instrument, handle, and another probe.

Universal air velocity & IAQ measuring instrument testo 400 and testo 440

Multifunction measuring instruments: online product configurator

to the consultant

Your measuring instrument for all comfort level parameters

Because good ideas only flourish when the conditions are right – use the testo 440 to measure these parameters, to create the best possible feel-good climate:

  • Guarantee a cosier ambience

  • Improve indoor air quality

  • Monitor humidity reliably

  • Control lighting more effectively

Measure comfort with the testo 440 air velocity and IAQ measuring instrument.

Your measuring instrument for all comfort level parameters

Because good ideas only flourish when the conditions are right – use the testo 440 to measure these parameters, to create the best possible feel-good climate:

  • Guarantee a cosier ambience

  • Improve indoor air quality

  • Monitor humidity reliably

  • Control lighting more effectively

Measure CO2 and increase indoor air quality with testo 440

Your measuring instrument for all comfort level parameters

Because good ideas only flourish when the conditions are right – use the testo 440 to measure these parameters, to create the best possible feel-good climate:

  • Guarantee a cosier ambience

  • Improve indoor air quality

  • Monitor humidity reliably

  • Control lighting more effectively

Check humidity with testo 440 multifunction measuring instrument

Your measuring instrument for all comfort level parameters

Because good ideas only flourish when the conditions are right – use the testo 440 to measure these parameters, to create the best possible feel-good climate:

  • Guarantee a cosier ambience

  • Improve indoor air quality

  • Monitor humidity reliably

  • Control lighting more effectively

Measure comfort with the multifunctional testo 440 air velocity and IAQ measuring instrument.

Kje bi radi uporabljali svoj vakuumski merilnik?

Kits for comfort level measurement

Kje bi radi uporabljali svoj vakuumski merilnik?

Application video: Indoor air quality and comfort level

Measuring indoor air quality and comfort level using the testo 440 air velocity and IAQ measuring instrument.

Use these tips to measure more effectively

Kje bi radi uporabljali svoj vakuumski merilnik?

Measurement menus testo 440

Measurement menus

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The intuitive measurement menus

The menus programmed into the instrument guide you efficiently through volume flow measurements in ducts and at outlets, K factor and Pitot tube measurements.

Probe comparison testo 440

Probe comparison

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All probes for the testo 440

Which probe for which application? Download probe comparison now and find out all about the testo 440 portfolio of probes.

Brochure testo 440

Laboratories/Cleanrooms

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The comprehensive testo 440 brochure

A wealth of product knowledge relating to the testo 440:

  • All probes and accessories

  • Special kits for any application

  • Details on the intuitive measurement menus

What else do you want to measure?

Kje bi radi uporabljali svoj vakuumski merilnik?

Measure humidity and temperature with the multifunctional testo 440 air velocity and IAQ measuring instrument.

In laboratories/cleanrooms

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Multifunctional measuring instrument testo 440

Overview page testo 440

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