020C Wind Direction Sensor

020C Wind Speed Sensor

The 020C Wind Direction Sensor provides azimuth data for use in micrometeorological measurements related to operational studies and research. The lightweight airfoil vane is directly coupled to a single precision potentiometer. These sensors are especially useful when a low starting threshold, a high damping ratio, or a short delay distance is required.


Azimuth Electrical 0° – 357°, Mechanical 0° – 360°
Threshold 0.5 mph (0.22 m/s)
Linearity ±1/2% of full scale
Accuracy ±3°, resolution <0.1°
Damping Ratio Standard 0.6 (magnesium tail) (meets EPA specifications)
Delay Distance Less than 3 ft (91 cm)
Temperature Range -50°C to + 65°C (-58°F to +149°F)
Power Requirements 12 VDC at 10 mA, 12 VDC at 350 mA for internal heater
Output Signal Selectable a. 0 – 5 V for 0° – 360°
b. 0 – 2.5 V for 0° – 360°
Output Impedance 100 Ω maximum
Weight 1.5 lbs (.68 kg)
Finish Clear anodized aluminum
PN 1957 Cable assembly; specify length in feet or meters
Mounting PN 191 crossarm assembly (contains orientation lock)

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