General |
| Operating Temperature | 0° to +140°F ( - 18° to +60°C) |
| Storage Temperature | - 22° to +158°F ( - 30° to +70°C) |
| Current Draw, Cabled | 10 mA average, 15 mA peak at 4 to 6 VDC |
| AC Power Adapter | 5 VDC, 200 mA, regulated |
| Batteries | 3 AA - cells |
| Backup Battery Life, Cabled | up to 1 months |
| Connectors | Modular RJ - 11 |
| Housing Material | UV - resistant PVC plastic |
| Dimensions (length x width x height) | 65" x 15" x 375" (165 mm x 38 mm x 95 mm) |
| Weight (with batteries) | 058 lbs (026 kg) |
Sensor Inputs |
| RF Filtering | RC low - pass filter on each signal line |
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 to 810 mm Hg, 880 to 1080 hPa or mb |
| Uncorrected Range | 16.00" to 32.50" Hg, 410 to 820 mm Hg, 540 to 1100 hPa or mb |
| 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 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 ±0.06" (2.0 hPa/mb, 1.5 mm Hg) = Rapidly
Change ±0.02" (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 | 1 minute |
| 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 | 1 to 100% RH |
| Accuracy | ±3% from 1% to 90%; ±5% from 90% to 100% |
| Update Interval | 1 minute |
| Current and Historical Data | Based on WeatherLink display |
| Alarms | High and Low Threshold from Instant Reading |
Inside Temperature |
| IResolution 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 | Inside | 0° to +140°F ( - 18° to +60°C) |
| External Temperature Probe | - 40° to +150°F ( - 40° to +65°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 |
