This product is no longer available.
ICEFREE3V Wind Vane Sensor
Services Available


The ICEFREE3V vane is an electrically heated potentiometer wind-direction sensor designed for ice-prone sites. With an applied excitation voltage, a ratiometric dc voltage output is produced.

The ICEFREE3V is manufactured by Renewable NRG Systems and has an 8 m (26 ft) cable.

Read More


Detailed Description

The ICEFREE3V senses wind direction using a potentiometer. With the precision excitation voltage from the data logger applied to the potentiometer element, the output signal is an analog voltage that is directly proportional to the azimuth of the wind direction.

Wiring Information

Gray Cable

  • Red - Excitation +
  • Black - Reference
  • White - Signal
  • Shield - Shield

Red Cable

  • Black - Heater
  • White - Heater


Sensor Vane
Measurement Description Wind direction
Mechanical Range 360°
Electrical Range 352° (8° open)
Potentiometer Linearity Within 1%
Potentiometer Resistance 0 to 10 kΩ
Operating Temperature Range -40 to +80°C
Operating Humidity Range 0 to 100% RH
Supply Voltage 24 V ac/dc
Supply Current Inrush 8 A (maximum)
Supply Current Steady State 1 A at 20°C, 4 A under maximum thermal load (head frozen in clear ice then powered on)
Body Diameter 7.0 cm (2.75 in.)
Swept Diameter 21.2 cm (8.38 in.)
Center-to-Tail Radius 10.6 cm (4.19 in.)
Cable Length 8 m (26 ft)
Overall Assembly Height 23.9 cm (9.41 in.)
Weight 1.58 kg (2 lb)


Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

Data Loggers

Product Compatible Note
CR1000 (retired)
CR200X (retired)
CR3000 (retired)
CR800 (retired)
CR850 (retired)

Privacy Policy Update

We've updated our privacy policy.  Learn More

Cookie Consent

Update your cookie preferences.  Update Cookie Preferences