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. High-quality measuring technology, intuitive measurement assistants, versatile documentation options and a comprehensive selection of IAQ probes make the Testo 400 the perfect partner for your day-to-day work.
As an expert in the field of air conditioning and ventilation, you will find the Testo 400 universal IAQ measuring instrument ideal. The IAQ measuring instrument with a built-in measurement assistant provides optimum support for carrying out airflow and comfort level measurements in accordance with the standards, as well as for adjusting and inspecting air conditioning and ventilation systems.