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Oregon Scientific WMR-300 Professional Advanced Pro - PC Software included
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Oregon Scientific WMR-300 Professional Advanced Pro - PC Software included

Ultra-precision Professional Weather System
Large backlit LCD touch screen display unit
Forecast based on Barometric Pressure
Graphical display of up to 24 months of detailed weather data at a time
300m (1000 ft) sensor transmission range
Customizable recording level allows user to specify how frequently data is generated
Data logger stores gathered data from three weeks to three years depending on the selected recording level
USB connection for uploading weather data to PC
Today and monthly min/max
High/low alert
Radio-controlled clock
Optional NIST sensor certification for US residents
Comprehensive Weather Data
  1. Weather forecast
  2. Max / min / current barometric pressure with trend
  3. Max / min / current outdoor/ indoor temperature and humidity with trend
  4. Wind speed (average wind speed and wind gust)
  5. Wind direction (current and 10 min dominant wind direction)
  6. Rainfall (rain rate, accumulated rainfall, past 24 hours rainfall, current hour rainfall) Heat index
  7. Wind chill & dew point
  8. Sunrise/ sunset time
  9. Moon phase


Other Sensors

Optional Wireless Remote Sensors# 
Additional temperature & humidity sensors

More upcoming…
Wireless repeater (Extend transmission range)
UV sensors (Measure UV index & UV dose)
Solar radiation sensor (Measure solar radiation, THSW & evapotranspiration (ET)
Aspirated fan (Enhance accuracy of temperature and humidity sensor)
Soil/leaf sensor (Measure soil moisture/temperature & leaf wetness)

Weather OS PRO
Highly Intuitive, Customizable PC user interface for tracking, managing and transferring collected weather data
Hardware Requirements: 
 CPU requirement (Intel Platinum 4 or above)
 Main memory 512 MB RAM (Minimum)
 Display memory 256 MB RAM (Minimum), Support DirectX 9 HAL
 Display resolution: minimum resolution 1024x768 and 32-bit color
 Hard disk space 200 MB (Minimum) for main program installation
 USB 2.0 port for console connection

Software Requirements: 
 Operation system: Windows XP SP3 (32 or 64bit) or later version
 DirectX 9.0 or above
 Internet browser: IE 7 or latest (for online help, firmware update and software download process)

Wireless Transmission Distance: Wireless Transmission Distance: 300m/1000 feet
Transmission Frequency: 868/915MHz
Outdoor Sensor Update Interval: 2.5-20 seconds
Storage of Historical Data: Daily/ Monthly Max/Min, Past 24 hours, 24 days and 
24 months graph
Data Logger: Up to 3 years of hourly record
PC Software: Weather OS Pro
Console: Touch screen
Console Firmware: Updatable
Sensor Set: Rain gauge, anemometer, thermo/hygro sensor
Sensor Connection: Separated sensor module
Sensor Transmission: Sensors connect to the solar transmitter box by wire and the latter transmits data to console wirelessly*
Solar Panel: Yes
NIST Certification: Yes

Barometric Pressure
Display Resolution
Update Interval
Accuracy +/-

Elevation Low
Elevation High
21.25inHg / 540hPa
43.31inHg / 1,100hPa
0.01inHg / 0.1hPa
15 min.
1mb/hPa between 677-1016hPa
-999 feet
14,993 feet
Outside Humidity
Display Resolution
Accuracy +/-
Outside Temperature
Display Resolution
Accuracy +/-
-40°F / -40°C
150°F / 65°C
0.2°F / 0.1°C
1°F / 0.5°C
Wind Speed
Display Resolution
Accuracy +/-
0 m/s 
80 m/s
0.1 mph / 0.1 knot / 0.1 m/s
+/- 0.9m/s (under 18m/s) 
+/-5% (above 18m/s)

Display Resolution

Accuracy +/-



0.01" / 0.254mm

5% / 0.01in
Inside Humidity
Display Resolution
Accuracy +/-
3% @25°C
Inside Temperature
Display Resolution
Accuracy +/-
32°F / 0°C
140°F / 60°C
0.1°F / 0.1°C
1°F / 0.5°C
Wind Direction

Display Resolution
Accuracy +/-










High Precision for Higher Standards 
This high grade system is specially designed to meet professional and industrial use of quality. It’s so accurate; Oregon Scientific even offers optional NIST sensor certification for US residents. 

Strong Wireless Transmission for More Options 
Put your station wherever you need it. The sensors are solar powered and transmits data wirelessly more than 300m – three times the range of Oregon Scientific’s Professional Weather Center WMR200. 

Track Patterns Over Time 
Customise your data recording to capture and store information as you need it, from three weeks of reports by the minute up to three years’ worth of data covering longer intervals. 

All Your Data at a Glance 
See all incoming data, including temperature, humidity, barometric pressure, heat index, wind speed/direction, rainfall and more, on the main display console or connect via USB to your PC for further study. 

Easy to Read, Easy to Use 
The generous LCD touch screen features clear, easy-to-read graphics and lets you flip through data and control your station with the flick of a finger. 

Future Expansions for Greater Customisation 
Optional accessories like soil moisture/temperature sensors and solar radiation sensors will allow the system to be customised for a variety of professional and industrial uses. 

NIST Certification
Founded in the United States and part of the U.S. Department of Commerce, the National Institute of Standards and Technology (NIST) provides consistent and accurate measurement standards for industries, scientists and citizens. 

As a service to professional and industrial customers, Oregon Scientific offers an optional service to certify the sensors are accurate within stated specifications. The certificate is valid for up to a year. This certification is applicable primarily to business operating within the U.S. International users should confirm beforehand the NIST certification will be applicable in their region.

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