Specifications, Operating conditions, Wind speed – Orion Car Audio 420 User Manual
Page 10: Wind direction, Relative humidity

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Orion 420 Weather Station
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Columbia Weather Systems, Inc.
Specifications
Operating Conditions
Temperature Operation: -52 to +60°C (-6- to +140°F)
Relative humidity: 0 to 100%
Pressure: 600 to 1100 hPa
Wind: 0 to 60 m/s
Wind Speed
Range: 0-135mph (0-60 m/s)
Accuracy: ±0.7 mph (+/-0.3 m/s) or ±3%, whichever is greater for the
measurement range of 0 – 35 m/s
±5% for the measurement range of 36 – 60 m/s
Resolution: 1 mph (1 m/s)
Units Available: knots, mph, km/hr, m/s
Wind Direction
Azimuth: 0-360°
Accuracy: ±3°
Resolution: 1°
Units Available: ° Azimuth
Relative Humidity
Range: 0 - 100%
Accuracy: ±3% (0-90%), 5% (90-100%)
Resolution: 1%
Units Available: %RH