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Range
Inside . . . . . . . . . . . . . . . . . 0° to +140°F (-18° to +60°C)
External Temp Probe . . . . . -40° to +150°F (-40 ° to +65°C)
Sensor Accuracy . . . . . . . . . . ±1°F (±0.5°C) typical
Update Interval . . . . . . . . . . . 1 minute
Current & Historical Data . . . . Based on WeatherLink display
Alarms. . . . . . . . . . . . . . . . . . High and Low Thresholds from Instant Reading
Barometric Pressure (sensor located in Envoy)
Resolution and Units . . . . . . . 0.01" Hg, 0.1 mm Hg, 0.1 hPa/mb (user-selected)
Corrected Range . . . . . . . . . . 26.00" to 32.00" Hg, 660.0 to 810.0 mm Hg,
Uncorrected Range . . . . . . . . 16.00" to 32.50" Hg, 410 to 820 mm Hg, 540 to
Elevation Range . . . . . . . . . . -1500' to +15,300' (-460 m to 4670 m)
Uncorrected Reading
Accuracy . . . . . . . . . . . . . . ±0.03" Hg (±0.8 mm Hg, ±1.0 hPa/mb) (at room
Sea-Level Reduction
Equation . . . . . . . . . . . . . . United States Method employed prior to use of
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
Overall Accuracy . . . . . . . . . . ±0.04" Hg (±1.0 mm Hg, ±1.4 hPa/mb)
Trend (change in 3 hours) . . . Change ±0.6" (2 hPa/mb, 1.5 mm Hg) = Rapidly
Trend Indication . . . . . . . . . . 5 position arrow: Rising (rapidly or slowly),
Update Interval . . . . . . . . . . . 1 minute
Current & Historical Data . . . . Based on WeatherLink display
Alarms. . . . . . . . . . . . . . . . . . High Threshold from Current Trend for Storm
Range for Rising and
Falling Trend Alarms . . . . . . . 0.01 to 0.25" Hg (0.1 to 6.4 mm Hg, 0.1 to
Inside Relative Humidity (sensor located in Envoy)
Range . . . . . . . . . . . . . . . . . . 1 to 100% RH
Accuracy . . . . . . . . . . . . . . . . ±2%
Update Interval . . . . . . . . . . . 1 minute
Current & Historical Data . . . . Based on WeatherLink display
Alarms. . . . . . . . . . . . . . . . . . High and Low Threshold from Instant Reading
Clock
Resolution . . . . . . . . . . . . . . . 1 minute
Units . . . . . . . . . . . . . . . . . . . Time: 12 or 24 hour format (user-selectable)
Accuracy . . . . . . . . . . . . . . . . ±8 seconds/month
Adjustments . . . . . . . . . . . . Time: Automatic Daylight Saving Time (for users
28
880.0 to 1080.0 hPa/mb
1100 hPa/mb
temperature)
current "R Factor" method
specification
Change ±0.2" (.7hPa/mb, 0.5 mm Hg)= Slowly
Steady, or Falling (rapidly or slowly)
Clearing (Rising Trend; Low Threshold from
Current Trend for Storm Warning (Falling Trend)
hPa/mb)
Date: US or International format (selectable)
in the U.S., Canada and Europe that observe it in
AUTO mode, MANUAL setting available for all
other areas); Date: Automatic Leap Year
8.5
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