Source: Texas A&M University

A two-year study in Texas of 10 "smart" irrigation controllers discovered that some performed well, but others did not.

"When looking at total seasonal irrigation amounts for the entire landscape, only two controllers were within the recommendations of TexasET (Texas Evapotranspiration Network)," said Charles Swanson, AgriLife Extension program specialist. "The remaining eight controllers put out significantly more water that would have been needed."

Original press release