The Rosco Fog Machine DMX Interface Controller is an external accessory designed to connect compatible Rosco smoke and fog machines (such as the Delta 3000, 4000, and 5000 models) to professional DMX lighting control systems. This interface unit translates the standard digital DMX-512 lighting control signal into the proprietary control language used by Rosco fog machines. It allows lighting designers and operators to seamlessly integrate atmospheric effects into their lighting cues and control parameters like fog output duration and intensity directly from their lighting console.