As one of its daily deals, Home Depot offers the Rachio Iro 16-Zone Smart Irrigation Controller, model no. 16ZULW, for $109.99 with free shipping. That's $40 under our mention from two weeks ago and the best price we've seen. (It's a current low by $40.) It automatically adjusts your watering schedule based on weather, seasonality, zone-type, and regional characteristics and can be controlled via the Rachio iOS or Android app. It's also compatible with the Wink home automation system and works via the Wink iOS or Android app (no Wink hub is required). Deal ends today.