Specifications
General
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . +14° to +140°F (-10° to +60°C)
Non-operating Temperature. . . . . . . . . . . . . . . . . . . -5° to +158°F (-20° to +70°C)
Current Draw, Cabled . . . . . . . . . . . . . . . . . . . . . . . 10 mA average, 15 mA peak at 4 to 6 VDC
Current Draw, Wireless . . . . . . . . . . . . . . . . . . . . . 0.67 mA average, 15 mA peak, (plus .125 mA for each optional
wireless transmitter in use) at 4 to 6 VDC
AC Power Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . 5 VDC, 200 mA, regulated
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 AA-cells
Battery Life, Cabled . . . . . . . . . . . . . . . . . . . . . . . . . up to 6 months
Battery Life, Wireless . . . . . . . . . . . . . . . . . . . . . . . up to 1 month
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modular RJ-11
Cable Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-conductor, 26 AWG
Housing Material . . . . . . . . . . . . . . . . . . . . . . . . . . . UV-resistant ABS plastic
Dimensions
Cabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.375″ x 3.7″ x 1.375″ (162 mm x 94 mm x 35 mm)
Wireless (includes antenna) . . . . . . . . . . . . . . . 6.375″ x 4.35″ x 1.375″ (162 mm x 111 mm x 35 mm)
Weight (with batteries). . . . . . . . . . . . . . . . . . . . . . . 0.58 lbs. (0.26 kg)
Communications
Transmit/Receive Frequency . . . . . . . . . . . . . . . . . . . . US Models: 916.5 MHz, Overseas Models: 868.35 MHz
Transmitter ID Channels Available . . . . . . . . . . . . . . . . . 8
Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 916.5 MHz: FCC-certified low power, less than 1 mW, no license required.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 868.35 MHz: CE-certified, less than 10 mW, no license required
Range
Line of Sight . . . . . . . . . . . . . . . . . . . . . . . . . . up to 400 feet (120 m)
Through Walls . . . . . . . . . . . . . . . . . . . . . . . . . 75 to 150 feet (23 to 46 m) (typical, under most conditions)
Sensor Inputs
RF Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RC low-pass filter on each signal line
Sensor Outputs
Inside Temperature
Resolution and Units . . . . . . . . . . . . . . . . . . . . Current Data: 0.1°F or 1°F or 0.1°C or 1°C (user-selectable)
Historical Data and Alarms: 1°F or 1°C (user-selectable)
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +32° to +140°F (0° to +60°C)
Sensor Accuracy . . . . . . . . . . . . . . . . . . . . . . . ±1°F (±0.5°C) up to 110°F (43°C), ±2°F (±1°C) over 110°F (43°C)
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . 1 minute
Current Data . . . . . . . . . . . . . . . . . . . . . . . . . . Instant Reading (user adjustable); Daily and Monthly High and Low
Historical Data . . . . . . . . . . . . . . . . . . . . . . . . . Hourly Readings; Daily and Monthly Highs and Lows
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High and Low Thresholds from Instant Reading
Barometric Pressure (sensor located in console)
Resolution and Units . . . . . . . . . . . . . . . . . . . . . 0.01″ Hg, 0.1 mm Hg, 0.1 hPa/mb (user-selectable)
Corrected Range . . . . . . . . . . . . . . . . . . . . . . . 26.00″ to 32.00″ Hg, 660.0 to 810.0 mm Hg, 880.0 to 1080.0 hPa/mb
Uncorrected Range . . . . . . . . . . . . . . . . . . . . . . 18.00″ to 33.50″ Hg, 457.0 to 850.0 mm Hg, 592.0 to 1130.0 hPa/mb
Elevation Range . . . . . . . . . . . . . . . . . . . . . . . . -999’ to +12,500’ (-305 m to 3810 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 ±0.6″ (2 hPa/mb, 1.5 mm Hg) = Rapidly
Change ±0.2″ (.7hPa/mb, .5 mm Hg)= Slowly
Trend Indication . . . . . . . . . . . . . . . . . . . . . . . . 5 position arrow: Rising (rapidly or slowly), Steady, or Falling (rapidly or
slowly)
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . 15 minutes or when console BAR key is pressed twice
Current Data . . . . . . . . . . . . . . . . . . . . . . . . . . . Instant, 15-min., and Hourly Reading; Daily, Monthly, High and Low
Historical Data . . . . . . . . . . . . . . . . . . . . . . . . . 15-min. and Hourly Reading; Daily, Monthly Highs and Lows
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 )
Inside Relative Humidity (sensor located in console)
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 to 90% RH
Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5%
Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . 1 minute
Current Data . . . . . . . . . . . . . . . . . . . . . . . . . . . Instant (user adjustable) and Hourly Reading; Daily, Monthly High and Low
Historical Data . . . . . . . . . . . . . . . . . . . . . . . . . Hourly Readings; Daily, Monthly Highs and Lows
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High and Low Threshold 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
RAndy R. –
it was easy to set up
This works, it was easy to set up. We now have a Davis and Wunderground webpage. Also able to see home weather on my iPhone.Used this with the WeatherlinkIP data logger. Wireless is the way to go.
– RAndy R.
K. Baker –
Four Stars
So frustrating this doesn’t just have a serial port but it works.
S. Bryant –
Works well enough but shouldn’t be needed
Relatively easy to set up, but I still wonder why neither this or my Vantage Pro2 can’t connect to our home network via wi-fi. It seems to me that this shouldn’t even be needed.