Wind Meter

Wind Measurement

The Hanwell Pro Wind Meter is a high-performance compact and economical device used to for wind measurement including wind speed and direction.

Technical Specification

Radio Transmitter Specifications
Dimensions: 110 x 100 x 57mmThe-IMC-Group-British-Made
Weight: 300 grams
Power Supply: 240V
Case Material: Pressed steel, black powder coated

Sensor Specifications
Dimensions: 256 x 360mm
Weight: 360 grams
Operating Temperature: -40°C to +55°C
AIMgSi, Grey anodized
Cups: PA, reinforced with carbon fibre
Vane: PA, reinforced with fibreglass
Sensor/transducer type: Dual reed switch 0.5…60m/s

Wind Speed
Measurement Range: 0.5 … 60 m/s
Starting Threshold: <0.4 m/s
Distance Constant: 2 m 
Transducer Output: 1Hz ~ 0.7 m/s
Wind speed < 10 m/s: +/- 0.3 m/s
Wind speed > 10 m/s: +/- 2%

Wind Direction:
Sensor / transducer type: Potentiometer
Measurement Range:
WMS301 with 1-wiper potentiometer: 0…355°
WMS302 with 2-wiper potentiometer: 0…360°
Starting Threshold: <1.0 m/s
Damping Ratio: 0.3
Overshoot Ratio: 0.4
Delay Distance: 0.6 m
Accuracy: better than +/-3°

Radio Transmitter FunctionsSignal-strength-message

Frequency Options: A range of frequencies are available between 433-458MHz. Country specific regulations apply.
Radio Power: 10mW
Radio Range: 3km over open ground 
Battery Life: Up to 18 months

This product can be calibrated to your specifications, contact us for further details.
N.B Instrument operating range -20°C to +65°C in a non-condensing RH environment.

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Wind Speed and direction radio transmitter for Hanwell Pro systems

The Wind Meter is a high performance, compact and economical wind speed and direction sensor. Its simplicity and corrosion resistant construction make it ideal for a wide range of wind measuring applications. The rotating cup anemometer at the top of the unit provides a linear response to wind speed. The vane, which is attached to the body of the device provides a fast response to wind direction.

The shape, dimensions, and material of the cups contribute to accurate measurement. The cups are carefully tested to give linear response between the wind speed and the angular velocity of the cup wheel. The wind vane is located directly beneath the cup assembly and is made of a durable, lightweight material that ensures fast response and low inertia.

A relay contact output is provided for wind speed. The wind speed can be recorded either by counting the number of pulses within a fixed time period, or by measuring the time between successive pulses. A potentiometer detects the position of the vane. The potentiometer features low starting and running torque, linear resistance and a long operation life. It has a single wiper with an open gap of less than 5 degrees. With constant voltage supplied to the potentiometer, the output voltage is directly proportional to the azimuth angle.

Hanwell Pro Wind Meter Features

  • Wireless data transfer
  • Combined wind speed and direction sensor
  • Compact and light design
  • Low power consumption
  • Fast and linear response to wind
  • Comprehensive analysis and data history
  • Easy reading management system

Benefits of Wind Measurement

  • Enables users to detect change in wind speed and direction for preventative maintenance
  • Reduce potential internal damp caused by drafts and cold spots
  • Eliminate costs related to external wind damage and internal air flow

System Components

  • Base Unit: CR2 or SR2
  • Repeater: Repeater
  • Software: Hanwell EMS


Software Required:
W700 – Standard Hanwell EMS Software Package
*See EMS datasheet for further options

Hardware Required:
CR2 – Controller
SR2 – Smart Receiver
REP – Repeater

N.B Instrument operating range -20°C to +60°C in a non-condensing RH environment.