The Extech AN300 Thermo-Anemometers are 4″ (10cm) large vane Thermo-Anemometers that allow for more precise readings on larger size
ducts. Each meter simultaneously displays Airflow or Air Velocity and Temperature. Choose models that also measure Air Volume, Humidity
& Carbon Dioxide (CO2).
Applications for the Extech AN300 Thermo-Anemometers include: