GM8902-Benetech Air Flow Anemometer
1. Overview


An anemometer is a device used for measuring the speed of wind, and is also a common weather station instrument..
An air flow anemometer combines a propeller and a tail on the same axis to obtain accurate and precise wind speed and direction measurements from the same instrument. The speed of the fan is measured by a rev counter and converted to a windspeed by an electronic chip. Hence, volumetric flowrate may be calculated if the cross-sectional area is known.
In cases where the direction of the air motion is always the same, as in ventilating shafts of mines and buildings, wind vanes known as air meters are employed, and give satisfactory results


2. Main Features
  Measurement of wind velocity, temperature and flow
  Unit conversion of wind velocity, temperature and flow
  Measurement of maximum and minimum wind velocity
  Measurement of 2/3 Vmax and average wind flow
  Data holding, storing and deleting function
  Low battery indicating function
  Auto power off function (power off automatically if no further operation for 10 minutes )
  Memory of 500 records
  Audio key pressing alert
  Large LCD display
  Connect to PC with USB cable
3. Technical Specifications
  3.1 Wind Velocity Range :
Unit Wind Velocity Resolution Lowest point of Start Value Accuracy
m/s 0.0-45.0 0.001 0.3 ±3%±0.1
Ft/min 0.0-8800 0.01/0.1/1 60 ±3%±20
Knots 0.0-88.0 0.01/0.01 0.6 ±3%±0.2
Km/h 0.0-140.0 0.001 1.0 ±3%±0.4
Mph 0.0-100 0.001/0.01 0.7 ±3%±0.2
  3.2 Wind flow range :
    CMM: 0-999900 m³ /min
CFM : 0-999900 ft³/min
Unit Range Resolution Area
CFM (ft³/min) 0-999900 0.001-100 0.001-9999
CMM (m³ /min) 0-999900 0.001-100 0.001-9999
  3.3 Air Temperature Range :
Unit Scale Resolution Accuracy
°C 0.0-45.0 0.1 ±1.0°C
°F 32.0-113.0 0.1 ±1.8°F
    Inside the Box : Air Flow Anemometer unit ,Yellow sticker pocket Auxiliary Fan ,Software Disc For Anemometer ,USB Computer connecting cable ,1.5V AAA alkaline battery ,English Instruction Manual ,PP Packing box .

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