DAVIS Vantage Pro2 User Manual

Weather Data Measured & Calculated
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The Download At dialog box appears.
5. Enter the following information:
• Download Times - Select the hour(s) at which the software should automati-
cally download information from this station by clicking on the desired hour in
the list. You may select as many download hours as you want; the software will
download data from your station during each of the specified hours. To de-select
a previously selected hour, click on it again. To quickly select all hours, choose
Choose All. To quickly clear all selected hours, choose Clear.
• Offset Time - To force the software to automatically download a specific num-
ber of minutes after the selected hour(s), enter the number of minutes here. For
example, in the illustration above the software would automatically download at
8:05 and 9:05 am.
6. After setting the download time(s), click OK.
The software saves the automatic download time settings.
Weather Data Measured & Calculated
This section outlines each of the weather conditions measured and/or calcu-
lated by the Weather Envoy, by the Vantage Pro Integrated Sensor Suite (ISS),
and by optional Vantage Pro sensors. Each section includes a brief discussion
of the weather condition and a listing of the various ways in which the unit dis-
plays or stores that condition. Be aware that some of the weather conditions
require an optional sensor in order to measure or calculate a value.

DAVIS Vantage Pro2 Specifications

General

Update Interval	2.5 seconds
Temperature Accuracy	±1°F (±0.5°C)
Barometric Pressure Range	16.00 to 32.50 inHg (540 to 1100 hPa)
Rain Collector Type	Tipping bucket
Wind Speed Range	0 to 200 mph (0 to 322 km/h)
Wind Speed Accuracy	±2 mph (±3 km/h) or ±5%, whichever is greater
Wind Direction Resolution	1°
Wind Direction Accuracy	±3°
Solar Radiation Range	0 to 1800 W/m²
Solar Radiation Sensor Accuracy	±5%
UV Index Range	0 to 16
UV Index Accuracy	±5%
Wireless Transmission Range	Up to 1000 ft (300 m)
Temperature Range	-40°F to +150°F (-40°C to +65°C)
Humidity Range	0 to 100%
Humidity Accuracy	±3%
Rain Collector Resolution	0.01 in (0.2 mm)
Rain Measurement Accuracy	±4%
Wind Direction Range	0 to 360°
Power Supply	Solar powered with battery backup