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:
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