Product specifications

1-20
Vantage Pro2
™\
Sensor Data From Envoy
Barometric Pressure (sensor located in Envoy)
Resolution and Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . Measured in 0.01" Hg. Other units are converted from Hg and
rounded to nearest 0.1 mm, 0.1 hPa, 0.1mb.
Corrected Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26.00" to 32.00" Hg, 660.0 to 810.0 mm Hg, 880.0 to 1080.0 hPa/mb
Uncorrected Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.00" to 33.50" Hg, 406.0 to 850.0 mm Hg, 542.0 to 1130.0 hPa/mb
Elevation Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1500' to +15,300' (-460 m to 4670 m). The console screen limits
display of lower elevation to -999' when using feet as elevation unit.
Uncorrected Reading Accuracy . . . . . . . . . . . . . . . . . . . . ±0.03" Hg (±0.8 mm Hg, ±1.0 hPa/mb) (at room temperature)
Sea-Level Reduction Equation Used . . . . . . . . . . . . . . . . United States Method employed prior to use of current "R Factor"
method
Equation Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Smithsonian Meteorological Tables
Equation Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±0.01" Hg (±0.3 mm Hg, ±0.3 hPa/mb)
Elevation Accuracy Required . . . . . . . . . . . . . . . . . . . . . . ±10' (3m) to meet equation accuracy specification
Overall Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.04" Hg (±1.0 mm Hg, ±1.4 hPa/mb)
Trend (change in 3 hours) . . . . . . . . . . . . . . . . . . . . . . . .Change ±0.6" (2.0 hPa/mb, 1.5 mm Hg) = Rapidly
Change ±0.2" (0.7hPa/mb, 0.5 mm Hg) = Slowly
Trend Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 position arrow: Rising (rapidly or slowly), Steady, or Falling (rapidly
or slowly)
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 minutes
Current and Historical Data . . . . . . . . . . . . . . . . . . . . . . .Based on WeatherLink display
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High Threshold from Current Trend for Storm Clearing (Rising Trend
Low Threshold from Current Trend for Storm Warning (Falling Trend)
Range for Rising and Falling Trend Alarms . . . . . . . . . . . 0.01 to 0.25" Hg (0.1 to 6.4 mm Hg, 0.1 to 8.5 hPa/mb)
Humidity
Inside Relative Humidity (sensor located in Weather Envoy)
Resolution and Units. . . . . . . . . . . . . . . . . . . . . . . . . 1%
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 100% RH
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5%
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 minute
Current and Historical Data. . . . . . . . . . . . . . . . . . . .Based on WeatherLink display
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High and Low Threshold from Instant Reading
Temperature
Inside Temperature (sensor located in console)
Resolution and Units. . . . . . . . . . . . . . . . . . . . . . . . . Current Data: 0.1°F or 1°F or 0.1°C or 1°C.°(nominal). Celsius is
converted from Fahrenheit and rounded to the nearest 0.1° or 1°C.
Historical Graph Data and Alarms: 1°F or 1°C. Celsius is converted
from Fahrenheit and rounded to the nearest 1°C.
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +32° to +140°F (0° to +60°C)
Sensor Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1°F (±0.5°C) typical
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 minute
Current and Historical Data. . . . . . . . . . . . . . . . . . . .Based on WeatherLink display
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High and Low Thresholds from Instant Reading
Clock
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 minute
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Time: 12 or 24 hour format (user-selectable)
Date: US or International format (user-selectable)
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±8 seconds/month
Adjustments
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic Daylight Savings Time (for users in North America, Europe
and Australia that observe it in AUTO mode, MANUAL setting
available for all other areas)
Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic Leap Year