The KOHLER® DTV+ system controller acts as the wiring center and "brain" for the DTV+ showering system, providing connections for every component and powering the digital interfaces. Every DTV+ system, at a minimum, requires one interface, a mounting bracket, and this system controller - beyond that, everything is customizable. Elevate your experience with KOHLER. Kohler® System Controller Module, Series: DTV+™, AC Plug, 104 deg F