EXTECH AN320 Large Vane CFM/CMM Anemometer/ Psychrometer plus CO2 and limited NIST

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  • 4" (10cm) vane allows for more precise readings on larger size ducts
  • Air Velocity, Air Flow, Relative Humidity, Wet Bulb and Dew Point, Carbon Dioxide (CO2)
  • Built-in thermistor for air temperature
  • Multipoint and timed average calculations
  • Min/Max, Data Hold, and Auto power off
  • Complete with four AAA batteries and hard carrying case