Testing, Adjusting, and Balancing (TAB), Commissioning, and HVAC professionals need trustworthy, accurate instrumentation to get the measurements needed to keep buildings comfortable and safe. Airflow™ Instruments supports the work of building professionals, whether you’re designing a new building, laboratory or cleanroom concept—or performing routine system maintenance. Designed by air measurements experts, Airflow Instruments earned a reputation as being innovative, accurate, and reliable. Today, Airflow™ Instruments are manufactured to the stringent requirements of ISO9001.

TSI Incorporated, an international leader in measurement technology for over 50 years, acquired the Instrument Division of Airflow Developments, combining over 90 years of expertise and innovation in air measurement. Through investment in research and development, we continually seek new ways of measuring air flow and other ventilation parameters. TSI serves the needs of industry, governments, research institutions and academia. Our UK based service department also ensures your instruments are calibrated and serviced by TSI in market leading turnaround time