Smart-home product U.S. dollar sales grew 57 percent in 2016 vs. the prior year, according to a recent survey by The NPD Group. Security and monitoring products once again led the category, making up over…

Smart-home product U.S. dollar sales grew 57 percent in 2016 vs. the prior year, according to a recent survey by The NPD Group. Security and monitoring products once again led the category, making up over…