Sensors - Magellan MX 420 Weather Station

Wind speed and direction measurements are provided via an ultrasonic sensor. An electronic compass provides apparent wind measurements. GPS provides true wind and other features.

Wind Speed
Range: 0 to 134 mph (0 to 60 m/s)
Accuracy: ±3% 0.02 mph to 90 mph (±3% 0.01 m/s to 40 m/s), ±5% above 90 mph and up to 134 mph (40 m/s and up to 60 m/s)
Resolution: 0.02 mph (0.01 m/s)
Units Available: knots, mph, km/hr, m/s

Wind Direction
Measurement Range: 0-359°
Measurement Range: 0-359° Accuracy: ± 3° 0.02 mph to 90 mph (0.01 m/s to 40 m/s), ±5° above 90 mph and up to 134 mph (40 m/s and up to 60 m/s)
Resolution: 1°
Units: Degrees

A combined instrument mounted inside three double louvered, naturally aspirated radiation shields with no moving parts. The results are high performance across each measurement over long periods of time.

Barometric Pressure

Range: 8.85 – 32.48 inHg (300 - 1100 hPa)
Accuracy: ±0.015 inHg (±0.5 hPa) @ 77°F (25°C)
Resolution: 0.003 inHg (0.1 hPa)
Units Available: kPa, hPa, mbar, inHg

Relative Humidity
Range: 0-100%
Resolution: 1%
Accuracy: ± 2% @ 68°F (10%-90% RH)
Units: % Rh

Temperature
Range: -40 to +158°F (-40 to +70°C)
Accuracy: ±0.54°F @ 68°F (±0.3°C @ 20°C)
Resolution: 0.18°F (0.1°C)
Units: °C, °F

An integrated optical rain gauge that automatically senses water hitting its outside surface and provides measurements based on the size and number of drops. Algorithms interpret this data and simulate the output of a tipping bucket rain gauge. The optical rain gauge has no moving parts associated with tipping bucket gauges.

Precipitation
Resolution: 0.01inch
Range: 0 to >12 inches/hr
Repeatability: 3%
Units Available: mm, inches

Magellan MX Weather Station model 501 incorporates a silicon photodiode radiation sensor in the all-in-one sensor configuration including wind speed/direction, air pressure, temperature, relative humidity, compass and GPS.

Solar Radiation

Wavelength Sensitivity: 300 to 3000 nm
Output Range: 0 to 1600 W/m2
Resolution: 1 W/m2
DIN Standard: IS0 9060 Second Class
Sampling Rate: 1 Hz
Units: W/m2

Wind Speed
Range: 0 to 134 mph (0 to 60 m/s)
Accuracy: ±3% 0.02 mph to 90 mph (±3% 0.01 m/s to 40 m/s), ±5% above 90 mph and up to 134 mph (40 m/s and up to 60 m/s)
Resolution: 0.02 mph (0.01 m/s)
Units Available: knots, mph, km/hr, m/s

Wind Direction
Measurement Range: 0-359°
Accuracy: ± 3° 0.02 mph to 90 mph (0.01 m/s to 40 m/s), ±5° above 90 mph and up to 134 mph (40 m/s and up to 60 m/s)
Resolution: 1°
Units: Degrees

Temperature
Range: -40 to +158°F (-40 to +70°C)
Accuracy: ±0.54°F @ 68°F (±0.3°C @ 20°C)
Resolution: 0.18°F (0.1°C)
Units: °C, °F

Solar Radiation
Wavelength Sensitivity: 300 to 3000 nm
Output Range: 0 to 1600 W/m2
Resolution: 1 W/m2
DIN Standard: IS0 9060 Second Class
Sampling Rate: 1 Hz
Units: W/m2

Barometric Pressure
Range: 8.85 – 32.48 inHg (300 - 1100 hPa)
Accuracy: ±0.015 inHg (±0.5 hPa) @ 77°F (25°C)
Resolution: 0.003 inHg (0.1 hPa)
Units Available: kPa, hPa, mbar, inHg

Relative Humidity
Range: 0-100%
Resolution: 1%
Accuracy: ± 2% @ 68°F (10%-90% RH)
Units: % Rh

Precipitation
Resolution: 0.01inch
Range: 0 to >12 inches/hr
Repeatability: 3%
Units Available: mm, inches

Compass
Measurement Range: 0-359°
Resolution: 1.0°

GPS
Horizontal Position Accuracy: Less than 2.5M Circular Error Probability
Accuracy: Longitude and Latitude report to 6 decimal places