Sponsors: Campbell Scientific

Campbell Scientific Ltd manufacture and sell a range of data acquisition and meteorological instruments widely used for environmental monitoring and for weather and climate research. Their weather stations are in use in some of the Earth's most challenging environments and are chosen for their reliability, low power consumption and versatility to work with virtually any make or type of sensor and to interface to a range of telecommunication options.

Variable 4 uses Campbell's BWS-200 Research Grade Weather Station, plus CS300 Pyranometer and RM Young 52203 Rain gauge.