A smart sprinkler controller can automatically regulate—and likely reduce—the water use of your in-ground lawn sprinkler or irrigation system, as well as let you more easily control schedules, remotely manage your system, and integrate irrigation with other smart-home tasks. After spending three months testing 11 models, we think the Rachio 3 Smart Sprinkler Controller is the best option for most homeowners. It’s simpler to use than other models we tested, it’s available in eight- and 16-zone models (and each is expandable beyond that), and it features a Weather Intelligence system that responds better to real-time weather conditions and forecasts than any other. Its companion smartphone app also provides a better experience for controlling your irrigation system than the apps for other systems.

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