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Indoor Air Quality

Testo 440 - Air Velocity & IAQ measuring instrument

Testo 440 – Air Velocity & IAQ measuring instrument

The Testo 440 combines the benefits of a compact handheld device with intuitive measurement menus and a comprehensive selection of air velocity & IAQ probes. This means you have all measuring tasks on air conditioning and ventilation systems reliably under control.

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Testo 400 - Universal IAQ instrument

Testo 400 – Universal IAQ instrument

The Testo 400 is the universal measuring instrument for all IAQ professionals. Measure, analyze and document all IAQ and comfort level parameters using just one instrument – simply, conveniently and in compliance with the standards.

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