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

Smart Irrigation Controllers

Turf grass sprinkler head

Smart controllers (commonly referred to as ET controllers, weather-based irrigation controllers, smart sprinkler controllers, and water smart irrigation controllers) are a new generation of irrigation controllers that utilize prevailing weather conditions, current and historic evapotranspiration, soil moisture levels, and other relevant factors to adapt water applications to meet the actual needs of plants.

This section has several articles that discuss selection and evaluation of smart controllers for California.

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