This product is no longer available and has been replaced by: METPRO. Some accessories, replacement parts, or services may still be available.


The GRWS100 is a mid-level, low-power, portable weather station with a tiltable mast. It makes general meteorological measurements but is flexible enough to be adapted to a wide variety of weather-based applications. The GRWS100 can calculate many related weather parameters such as evapotranspiration, growing degree days, wind chill, dew point, and more.

You can enhance an existing research project or meet the needs of a new project by adding sensors, control devices, and telecommunication devices to the standard GRWS100. Most of the weather stations we sell are customized. Tell us what you need and we'll help you configure a station that meets your exact needs.


This system typically measures the following parameters:

  • Wind speed
  • Wind direction
  • Air temperature
  • Relative humidity
  • Barometric pressure
  • Precipitation
  • Solar radiation—sun plus sky radiation

Benefits and Features

  • Industry-proven, high-accuracy sensors
  • Modular, programmable, and customizable system
  • Battery-backed system enables continuous data collection, even during power outages and network failure
  • Modbus and PakBus protocols supported
  • Supports nearly all communication technologies such as RS-485, fiber, TCP/IP, cellular, or satellite
  • Portable weather station with tiltable mast


Case Studies

United Kingdom: The Effect of a Solar Eclipse on the Weather
Campbell Scientific Ltd. and pupils from Redmoor Academy in Hinckley were recently featured on more

Related Documents

FAQs for

Number of FAQs related to GRWS100: 1

  1. The following are the needed weather measurements with their importance:

    • Solar Radiation – Constitutes up to 80% of the equation depending on conditions.
    • Air Temperature – Ties for 2nd place with wind speed.
    • Wind Speed – Ties for 2nd place with air temperature.
    • Relative Humidity – Has a noticeable effect when the air is really dry or really humid.