We’ve summarized the features found on each Davis weather station that we sell in the chart below. Each weather station is typically available in several different versions, with and without optional sensors and with various installation options, including wireless transmission of data.

	Weather Wizard III	Weather Monitor II	Vantage Pro2
Barometric Pressure		.	.
Growing Degree Days			.
ET (Evapotranspiration)			*
Humidity & Dew Point
Inside Humidity		.
Outside Humidity & Dewpoint		.	.
Leaf Wetness			*
Rainfall
Rainfall	.	.	.
Rate of Rainfall			.
Solar Radiation & Energy
Solar Radiation Intensity			*
Solar Energy			*
Temperature
Apparent Temperature			.
Inside Temperature	.	.	.
Outside Temperature	.	.	.
Soil or Water Temperature			.
Wind
Wind Direction	.	.	.
Wind Speed	.	.	.
Direction of High Wind Speed	.	.	.
Wind Run			.

. Comes on Standard Weather Station
* Available with addition of optional sensors

Davis Weather Stations Performances
Function	Display Reading	Accuracy
Barometric Pressure (altitude below 12,000 ft or 3650 m)	26.00" to 32.00" 660.0 to 810 mm 880.0 to 1080.0 mb	±0.05" ±1.3 mm ±1.7 mb
Dew Point	-99°F to 140°F; -73°C to 60°C	±4°F; ±2°C
Inside Humidity	10% to 90%	±5%
Outside Humidity	20% to 100%	±5%
Daily Rainfall	0.01" to 99.99" 0.0" to 999.8 mm	±2%
Accumulated Rainfall	0.01" to 99.99" 0 to 9999 mm	±2%
Inside Temperature	-32°F to 140°F 0°C to 60°C	±1°F ±0.5°C
Outside Temperature	-50°F to 140°F -45°C to 60°C	±1°F ±0.5°C
12 or 24 Hour Clock		±15 sec/month
Wind Direction	1° to 10° increments	±7°
Wind Speed	to 175 mph, 282 kph, 152 knots, 78.2 m/s	±5°
Wind Chill	-134°F to 140°F -92°C to 60°C	±4°F ±2°C
Leaf Wetness	0 to 15	n/a
Solar Radiation	0 to 155 w/m²	5%
Soil Temperature	-50°F to 140°F -45°C to 60°C	±1°F ±0.5°C