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Extech Digital Display Digital Thermometer Multimeter

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4-in (10cm) vane allows for more precise readings on larger size ducts
Air velocity, air flow, relative humidity, wet bulb, dew point, and carbon dioxide (CO2)
Built-in thermistor for air temperature

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Extech’s 4 In. (10 cm) large vane thermo-anemometer series allows for more precise readings on larger size ducts. Each meter simultaneously displays airﬂow or air velocity and temperature. Model AN320 also measures relative humidity, wet bulb and dew point and carbon dioxide.

4-in (10cm) vane allows for more precise readings on larger size ducts
Air velocity, air flow, relative humidity, wet bulb, dew point, and carbon dioxide (CO2)
Built-in thermistor for air temperature
Multipoint and timed average calculations
Minimum/maximum, data hold, and auto power off
Complete with 4 AAA batteries and hard carrying case