Specifications

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 Included
 Optional, shown on console
 Optional, requires
WeatherLink. Growing
degree-days also requires Ag/
Turf Management Module
Unlesslistedseparately,accuracy,resolution,and
rangeareforVantagePro2stations.Specificationsfor
PerceptionandWizardmaybesomewhatdifferent.
Forcompletespecifications,visitourwebsiteatwww.
davisnet.com/links.
ACCURACY, RESOLUTION, & RANGE
“Resolution”referstothenumberofdigitsordecimalplacesdisplayedon
theconsole.Formetricunits,thisisnottheactualunitofmeasureexcept
forrainfall.Ourraincollectormeasuresintrue0.01"or0.2mmincrements.
All other weather variables are measured and accumulated in U.S. units of
measure,whicharethenconvertedtometricunitsfordisplaypurposes.
WeatherWizardIIIcalculatesanddisplayswindchill
accordingtotheoriginalNationalWeatherServiceFormula.
Anewformulawasadoptedin2001.Forwindchillusing
thisformula,viewthedatausingWeatherLinkorchoose
VantagePro2instead.


  


Exceptforrainfall,allvariablesaremeasuredinU.S.unitsofmeasureand
roundedtothenearestmetricunitshowninthe“Resolution”column.
     

Evapotranspiration

0.01"
Day: to 99.99"
Month: to 199.99"
Year: to 199.99"
5% 0.1 mm
Day: to 999.9 mm
Month: to 1999.9 mm
Year: to 1999.9 mm
5%
Growing Degree-Days

0.1 Degree-Day Unlimited 0.1 Degree-Day Unlimited
Leaf Wetness

1 0 to 15 0.5 1 0 to 15 0.5
Soil Moisture

1 cb 0 to 200 cb 1 cb 0 to 200 cb

Barometric Pressure
(Elevation range:
-1000' to +15,000';
-300 to +4500 m)
 
0.01" Hg 26" to 32" Hg 0.03" Hg 0.1 mm Hg 660 to 810 mm Hg 0.8 mm Hg
 
0.1 mb 880 to 1080 mb 1.0 mb

0.1 hPa 880 to 1080 hPa 1.0 hPa
Three-Hour Trend

Slow
0.02" Hg
Rapid
0.06" Hg
5-Position Arrow
Slow
0.5 mm (0.7 mb)
Rapid
1.5 mm (2 mb)
5-Position Arrow
One-Hour Trend

Change 0.02" Hg 3-Position Arrow
Change 0.5 mm
(0.7 mb, 0.7 hPa)
3-Position Arrow

Inside Humidity
 
1% 10% to 90% 5% 1% 10% to 90% 5%
Outside Humidity

1% 0% to 100% 3% 1% 0% to 100% 3%
Dew Point

1°F –105° to +130°F 3°F 1°C –76° to +54°C 1.5°C

Rainfall

0.01"
Day: 0 to 99.99"
Storm: 0 to 99.99"
Month: 0 to 199.99"
Year: 0 to 199.99"
4%
0.2 mm.
(Rounded to 1 mm
at 2000 mm and above.)
Day: 0 to 9999 mm
Storm: 0 to 9999 mm
Month: 0 to 19,999 mm
Year: 0 to 19,999 mm
4%

0.01"
Day: 0 to 99.99"
Total: 0 to 99.99"
4% 0.2 mm
Day: 0 to 999.8 mm
Total: 0 to 9999 mm
4%
Rate of Rainfall

0.01" 0 to 99.99"/hr 5% 0.1 mm 0 to 1999.9 mm/hr 5%

Solar Radiation

1 W/m
2
0 to 1800 W/m
2
5% 1 W/m
2
0 to 1800 W/m
2
5%
Solar Energy

0.1 Ly 1999.9 Ly 5% 0.1 Ly 1999.9 Ly 5%
UV Dose

0.1 MEDs 0 to 199 MEDs 5% 0.1 MEDs 0 to 199 MEDs 5%
UV Index

0.1 0 to 16 5% 0.1 0 to 16 5%

Inside Temperature
  
0.1°F 32° to 140°F 1°F 0.1°C 0° to 60°C 0.5°C
Outside Temperature (ISS)
 
0.1°F –40° to +150°F 1°F 0.1°C –40° to +65°C 0.5°C
Outside Temp (Temp Stn)

1°F –40° to +150°F 1°F 1°C –40° to +65°C 0.5°C
Soil or Water Temperature

1°F –40° to +150°F 1°F 1°C –40° to +65°C 0.5°C
Outside Temp-Hum Index

1°F –40° to +135°F 3°F 1°C –40° to +57°C 1.5°C
Temp-Hum-Sun-Wind Index

1°F –90° to +135°F 4°F 1°C –68° to +64°C 2°C
Wind Chill
 
1°F –110° to +130°F 2°F 1°C –79° to +54°C 1°C

Time
  
1 minute 12 hours 8 sec/mo 1 minute 24 hours 8 sec/mo
Date
  
month/day 8 sec/mo day/month 8 sec/mo
Sunrise & Sunset

1 minute 1 minute

Wind Direction
 
1° 0° to 360° 4° 1° 0° to 360° 4°

10° 0° to 360° 4° 10° 0° to 360° 4°
Compass Rose
 
22.5° 16 compass points 4° 22.5° 16 compass points 4°
Wind Speed
 
1 mph
1 knot
2 to 150 mph
2 to 130 knots
5%
0.1 m/s
1 km/hr
1 to 67 m/s,
3 to 241 km/hr
5%
Direction of High Speed

22.5° 16 compass points 4° 22.5° 16 compass points 4°