Kohler DTV PROMPT Black System Control ModuleThe 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 K 99693 interface, a K 99694 mount What's Included System Control Module Features Provides power to the digital interfaces Controls digital valves and other connected system devices Integrated web pages for system set up Automatically