AIRFLOW

airflow measuring devices, namely, thermometers; thermohygrographs; thermohygro meters; manometers; micromanometers; barometers, smoke puffers; filter loss gauges; scales; inclined gauges; anenometers; anenometers for measuring air velocity, temperature and turbulence, hygrometers; air velocity monitors; in-duct flow sensors; pressure sensors; tachometers; measuring hoods and wind tunnel test rigs