Mini Airflow Volume Anemometer-Psychrometer with Enthalpy

ITEM # DAF3009

Mini Airflow Volume Anemometer-Psychrometer with Enthalpy

The #DAF3009 Mini Airflow Volume Anemometer-Psychrometer with Enthalpy can deliver all of the values needed to install, test and fine-tune the performance of an HVAC/R system. The enthalpy value enables a technician to compare a system's efficiency before and after charging with a refrigerant.


Best For:




  • Measures: 1) Airflow volume in cubic feet/minute (CFM) or cubic meters/minute (CMM); 2) Air speed; 3) Enthalpy (the heat of vaporization of air in an HVAC/R system duct); 4) Ambient temperature; 5) the dew point and wet bulb temperatures; 6) the Wind Chil
  • Tracks Min/max/avg session values for air speed and airflow volume
  • Five available air speed units: ft./min, mph, m/sec, km/hr, knots
  • Airflow volume and Enthalpy readings are available in Imperial or metric units
  • Large backlit LCD
  • °F/°C switch
  • Auto power off
  • Vane and sensor protection cap
  • Tripod mount
  • Specifications


    • Air speed measurement range: 80 to 5910 feet per minute (fpm) (0.9 to 67 mph, 0.4 to 30m/sec, 24 to 1801 m/min, 1.4 to 108km/hr, 0.8 to 58.3 knots)
    • Air speed measurement basic accuracy: ±3% of full-scale value
    • Air speed measurement resolutions: 1 fpm, 0.1 mph, 0.1m/sec, 0.1m/min, 0.1km/hr, 0.1 knots
    • Temperature measurement range/resolution: 32° to 122°F (0° to 50°C)/0.1°
    • Temperature measurement accuracy: ±1.8°F (±1°C) from 68° to 104°F (20° to 40°C); ±3.6°F (±2°C) elsewhere in range
    • Airflow volume measurement range: 0 to 591,000 CFM (0 to 16,740 CMM)
    • RH measurement range: 0 to 100%
    • RH measurement accuracy: ±3% from 20 to 80%RH; ±5% elsewhere
    • Dew point temperature measurement range: -67° to 122°F (-55° to 50°C)
    • Wet bulb temperature measurement range: -31° to 122°F (-35° to 50°C)
    • Enthalpy measurement range: -8 to 318 Btu/lb. (-19 to 740kJ/kg)
    • LCD size: 1.34 x 0.94 in. (34 x 24mm)
    • Auto power off: After 5 minutes of inactivity
    • Operating temperature: 32° to 122°F (0° to 50°C) @ <85% RH
    • Weight (without battery): 2.86 oz. (81g)
    • Power source: "CR2032" non-rechargeable Lithium-ion button battery (pre-installed)


    • Battery
    • 1-year limited warranty


    • 5.83 x 2.08 x 0.87 in. (148 x 53 x 22mm)


    What is a psychrometer?

    A psychrometer is an instrument that measures both the wet bulb and dry bulb temperatures.

    Prop 65

    ⚠ WARNING: This product can expose you to chemicals including di2-ethylhexylphthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to