Toro EVO-4ID Evolution Series Indoor Controller with Hinged Door 120 VAC 60 Hz The Toro EVO-4ID EVOLUTION Series Indoor Controller is a one-of-a-kind irrigation controller designed to help you meet your residential and light commercial customers’ needs. Modular between 4 and 16 stations, the EVOLUTION controller features a unique and intuitive menu system that delivers straightforward programming and easy-to-understand prompts. Shortcut buttons provide quick access to basic irrigation functions, while the advanced menu makes available specialized features, such as Grow In schedules, an Auxiliary schedule for accessories, and delayed starts between zones.