Anemometer AN320



เครื่องวัดความเร็วลม รุ่น AN320 แบรนด์ EXTECH  


Extech AN320 Large Vane Anemometer & Psychrometer CO2

The new Extech AN320 Large Vane Anemometer & Psychrometer with CO2 provides multifunction HVAC and IAQ measurements in one simple, accurate instrument. Use the 4" rotating vane to measure airflow and air volume at grill registers or ventilation equipment, and simultaneously measure relative humidity (RH), wet bulb, and dew point temperatures. Even take ambient CO2 readings with the Extech AN320. It's a great combination of features that will make it the go-to instrument for many technicians.
Also available is the optional Air Flow Cone Kit (AN300-C), used to take quick readings of grills or fans in just one measurement. The funnel cone captures the larger measurement area and funnels it through the AN320 anemometer. Funnel cones are 8.26" round, and 13.6" square in size.
  • 4" (10cm) low friction vane head
  • Accurately measure Air Velocity
  • Calculate Air Volume with duct dimensions
  • Measure relative humidity (RH)
  • Measure ambient CO2
  • Calculate dew point and wet bulb
  • Measure air temperature with the built-in thermistor
  • Multipoint and averaged readings available
  • Min/Max, Data Hold
  • Auto power off


m/s 0.2 to 30m/s
ft/min 40 to 5900ft/min
Accuracy ±1.5%
CFM/CMM 0 to 99999
Range -4 to 140°F (-20 to 60°C)
Accuracy ± (0.6°C)
Range 0.1 to 99.9%RH
Accuracy ±3%RH
Wet Bulb -4 to 140°F (-20 to 60°C)
Dew Point 23 to 140°F (-5 to 60°C)
CO2 0 to 9999ppm
Dimensions 10.6x4.2x2” (269x106x51mm)
Weight 7oz (200g)



AN320 Large Vane Thermo-Anemometer, four AAA batteries and hard case