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General Tools DAF3009 Mini-Anemometer/Psychrometer with CFM/CMM & Enthalpy

General Tools DAF3009
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  • Airflow Volume in ft3/min (CFM) or m3/min (CMM)
  • Air Speed (with Min, Max, Avg Values)
  • Enthalpy (Btu/lb.): the heat needed to vaporize a liquid
  • Ambient Temperature
  • Dew Point (DP) Temperature
  • Wet Bulb (WB) Temperature
  • Wind Chill Index (WCI)
  • Relative Humidity (RH)
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General Tools DAF3009 Mini-Anemometer/Psychrometer with CFM/CMM & Enthalpy

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Product Information

Ideal for measuring all parameters, including airflow volume and enthalpy of evaporation, needed to install, test and fine-tune the performance of an HVAC/R system.

Ideal for HVACR technicians and contractors, the DAF3009 offers the ability to measure eight HVACR-related parameters in one handheld device that is small and light enough for one-handed operation.

The DAF3009 can measure all parameters associated with installing, testing and fine-tuning the performance of an HVACR system:
  • Airflow Volume (in CFM or CMM)
  • Air Speed (in ft/min, m/sec, km/hr, mph or knots)
  • Enthalpy (in Btu/lb or kJ/kg)
  • Ambient Temperature
  • Dew Point Temperature
  • Wet Bulb Temperature
  • Wind Chill Index
  • Relative Humidity
The instrument not only can measure air speed and airflow volume, but also can track and calculate the maximum, minimum and average values recorded over a measurement “session.” A session begins when the device is powered on and ends five minutes after the final measurement is made (when the Auto Power Off function activates). This capability is helpful for a variety of purposes, such as determining the fastest and slowest fans in a group or the average of a group of fans.

What's In The Box

  • “CR2032” Battery (pre-installed)
  • User’s Manual
  • Waranty


Airflow Volume 0 to 591,000 CFM (0 to 16,740 CMM) / ±3% typical
Air Speed 80 to 5910 ft./min (0.4 to 30 m/s) / ±3% typical
Enthalpy (Btu/lb.) -8 to 318 Btu/lb. (-19 to 740 kJ/kg)
Temperature 32° to 122°F (0° to 50°C) / ±1.8°F (1°C) typical
Dew Point (DP) -67° to 122°F (-55° to 50°C)
Wet Bulb (WB) -31° to 122°F (-35° to 50°C)
Relative Humidity (RH) 0 to 100% / ±3% typical

General Tools DAF3009 Product Specifications Summary:
(for full specs please see the full specs tab or the data sheet)

Environmental Testers / Physical Property/Anemometer / Air Flow Template

Type (anemometer)Mini-Vane
Measurement (anemometer)Ft/Min, km/hr, knots, m/s, MPH
Air Velocity Max5910 ft/min
Air Velocity Min80 ft/min
Accuracy Air Velocity±3%
Dew PointYes
Min/Max DisplayYes
Metal VaneYes

Test Equipment General Attributes

Unique FeaturesAir Speed (in ft/min, m/sec, km/hr, mph or knots)
Power Supply VoltageBattery Powered
Battery TypeCR2032
Country of OriginUnited States



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