Anemometers

An anemometer is a device that is used to measure the speed of wind and is a common weather station instrument. To learn more, please see our complete guide to anemometers.

Anemometers can accurately monitor the wind speed and provide the data for the measurements in various ways. There are several types of anemometers and each one functions differently depending on what type it is and what type of wind measurement application it is used for. Most handheld wind speed monitors are rugged and durable to withstand the elements that they may be presented with, as well as being weatherproof, especially those that can be mounted to measure over long periods of time. They are used in a variety of applications from weather predictions to high-tech scientific research labs.

Types of Anemometer

The types of anemometer depend on the type of measurement application it is used for. Below are some common types:

  • Cup anemometers - The simplest type of anemometer which is mounted on a pole and consists of a set of two, three or four spinning cups that blow in the wind. As the wind gets stronger, the cup formation spins faster, and the anemometer captures the speed of the airflow and displays it as a digital readout.
  • Vane anemometer - These types are also known as propeller or windmill anemometers. Like cup anemometers, they use wind blades that turn, instead of cups. Some handheld propeller anemometers are also called impeller wind monitors because their propellers blades are protected by a caging unit to protect your hand.
  • Pressure-tube anemometer - This anemometer uses the pressure generated by the wind to measure its speed.
  • Hot-wire (thermal) anemometers or constant current anemometers - A hot-wire anemometer is commonly made for hand-held usage and works by heating a thin wire to a specific temperature and then measuring how much the wire is cooled by the airflow. It calculates how fast the wind is blowing by measuring how quickly the wire cools down and how cool it gets.
  • Thermal Anemometers with Velocity/Temperature Profiling – These have the smallest sensor which measures both velocity and temperature. They are commonly used in wind tunnels for circuit board and heat sink analysis.
  • Ultrasonic anemometers – The professional standard anemometers measure wind speed using high-frequency sound. It has two of three pairs of sound transmitters and receivers mounted at right angles to one another. Built in electronic circuits measure the time it takes for the sound to makes its way from each transmitter to the corresponding receiver. The circuits measure the difference in speeds of the beams and use that to calculate how fast the wind is blowing.

When would you use an anemometer?

Anemometers are key instruments for test and measurement in a variety of applications like:

  • Weather enthusiasts and hobbyists
  • HVAC installation and repair personnel wanting to measure airflow in an air conditioning units, heating or ventilation unit or home inspectors and facility managers
  • Scientists who measure environmental conditions
  • Agriculture, checking conditions like wind direction or wind speed, prior to crop spray

...
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Description Price Measurement Parameters Maximum Air Velocity Best Air Velocity Accuracy Air Velocity Resolution Probe Type Maximum Temperature Temperature Measurement Resolution Best Temperature Measurement Accuracy Power Source Battery Type Battery Life Dimensions Weight Height
RS Stock No. 233-9546
Mfr. Part No.KESTREL 1000
BrandKestrel
SGD190.18
Each
units
Air Velocity 40m/s ±3 % 0.1m/s Rotary Vane - - - Battery CR2032 300 h - 65g 20mm
RS Stock No. 344-3494
Mfr. Part No.KESTREL 3000
BrandKestrel
SGD396.01
Each
units
Air Velocity, Altitude, Dew Point, Heat Index, Pressure, Relative Humidity, Temperature, Wind Chill 40m/s ±3 % 0.1m/s Rotary Vane - 0.1°C ±1 °C Battery CR2032 300 h - 65g 18mm
RS Stock No. 123-2202
BrandRS PRO
SGD204.68
Each
units
Air Velocity 45m/s ±3 % 0.1m/s Vane +60°C 0.1°C ±0.8 °C Battery 9V 50 h - 350g 168mm
RS Stock No. 327-0640
BrandRS PRO
SGD573.20
Each
units
Air Velocity 20m/s ±5 % 0.1m/s Hotwire - 0.1°C ±0.8 °C Battery AAA x 6 - - 355g 32mm
RS Stock No. 512-0323
Mfr. Part No.0560 4351
BrandTesto
SGD769.56
Each
units
Humidity, Temperature 40m/s - - Hotwire, Rotary Vane - 0.1°C ±0.2 °C Battery AA 200 h - 428g 46mm
RS Stock No. 292-329
Mfr. Part No.0560 4101
BrandTesto
SGD166.98
Each
units
Air Velocity, Temperature 20m/s ±2% + 0.2 m/s 0.1m/s NTC, Rotary Vane - 0.1°C ±0.5 °C Battery AAA x 2 100 h - 110g 25mm
RS Stock No. 913-2579
Mfr. Part No.0560 1410
BrandTesto
SGD151.62
Each
units
Air Velocity, Temperature 30m/s 2 % 0.1m/s Vane +60°C 0.1°C ±0.5 °C Battery AAA 200 h - - 21mm
RS Stock No. 518-4513
Mfr. Part No.0560 4170
BrandTesto
SGD631.63
Each
units
Air Velocity, Temperature, Volume Air Flow 20m/s ±1.5% + 0.1 m/s 0.01m/s NTC, Rotary Vane - 0.1°C ±0.5 °C Battery 9V 50 h - 230g 45mm
RS Stock No. 913-2575
Mfr. Part No.0560 1405
BrandTesto
SGD180.85
Each
units
Air Velocity, Temperature 30m/s 5 % 0.01m/s Thermal +60°C 0.1°C ±0.5 °C Battery AAA 15 h - - 41mm
RS Stock No. 123-2203
BrandRS PRO
SGD347.87
Each
units
Air Velocity, Temperature 45m/s ±3 % 0.01m/s Vane +45°C 0.2°C ±1 °C Battery 9V 50 h - 350g 168mm
RS Stock No. 506-6011
Mfr. Part No.XPLORER 1
SGD85.01
Each
units
Air Velocity 42m/s ±3 % 0.027m/s Impeller - - - Battery CR2032 - - - 17mm
RS Stock No. 512-0610
Mfr. Part No.0635 9535
BrandTesto
SGD805.60
Each
units
Air Velocity 40m/s ±1.5% + 0.2 m/s - Telescopic Vane - - - - - - - - -
RS Stock No. 314-4282
Mfr. Part No.KESTREL 2000
BrandKestrel
SGD245.44
Each
units
Air Velocity, Temperature, Wind Chill 40m/s ±3 % 0.1m/s Rotary Vane - 0.1°C ±1 °C Battery CR2032 300 h - 65g 18mm
RS Stock No. 106-5314
BrandRS PRO
SGD113.69
Each
units
Air Velocity, Temperature 25m/s ±2 % 0.1m/s Rotary Vane +50°C 0.1°C ±1 °C Battery AAA 50 h - 80g 23mm
RS Stock No. 227-826
Mfr. Part No.0560 4053
BrandTesto
SGD217.39
Each
units
Air Velocity, Temperature, Volume Air Flow 10m/s ±5% + 0.3 m/s 0.01m/s NTC, Thermal - 0.1°C ±0.5 °C Battery AAA x 3 20 h - 115g 36mm
RS Stock No. 512-0317
Mfr. Part No.0560 4251
BrandTesto
SGD765.68
Each
units
Air Velocity, Temperature, Volume Air Flow 20m/s ±5% + 0.03 m/s 0.01m/s NTC, Thermal - 0.1°C ±0.7 °C Battery 9V 20 h - 285g 40mm
RS Stock No. 123-2224
BrandRS PRO
SGD398.48
Each
units
Air Flow, Air Volume 30m/s ±3 % 0.01 mph, 0.1 kph, 0.1 m/s Fast Response - - - Battery AAA 10 h - 235g 150mm
RS Stock No. 735-0043
Mfr. Part No.ATMOS
SGD285.37
Each
units
Air Velocity, Humidity, Temperature 42m/s ±3 % 0.27m/s Impeller - 0.1°C ±0.4 °C Battery CR2032 - - 235g 155mm
RS Stock No. 292-313
Mfr. Part No.0560 4102
BrandTesto
SGD277.20
Each
units
Air Velocity, Humidity, Temperature 20m/s ±2% + 0.2 m/s 0.1m/s NTC, Rotary Vane - 0.1°C ±0.5 °C Battery AAA x 2 60 h - - 25mm
RS Stock No. 801-1320
Mfr. Part No.KESTREL 3500
BrandKestrel
SGD483.70
Each
units
Air Velocity, Humidity, Temperature 40m/s ±3 % 0.1m/s Impeller +55°C 0.1°C ±0.5 °C Battery CR2032 300 h - 65g 122mm