Center for Landscape & Urban Horticulture
University of California
Center for Landscape & Urban Horticulture

U.C. Evaluation of Weather-sensing Irrigation Controllers

Evaluation of Weather-sensing Irrigation Controllers

Calsense ET1 with Electronic ET Gauge
Calsense ET1 with Electronic ET Gauge
WeatherTRAK Irrigation Controller
WeatherTRAK Irrigation Controller
Irrigation controllers that set and adjust water application in response to changes in the weather are now available for residential and commercial use.  In 2003, we conducted a science-based evaluation of selected weather-sensing irrigation controllers, representing a range of technologies and approaches, to determine the climatic data the controllers use, how easy they are to setup and operate, and how closely their irrigation regimes match landscape irrigation needs established by previous field research.  Unfortunately, no product evaluated was able to produce highly accurate irrigation schedules consistently for every landscape setting when compared to research-based reference comparison treatments. Please review our report, Evaluation of Weather-sensing Irrigation Controllers, for important  findings and conclusions about the performance and management of "smart" controller technology.

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