For more than 4-decades, Control Chief Corporation has been the premier builder of radio remote controls for overhead cranes and locomotives in the United States. True Mill Duty systems engineered and built to withstand the toughest applications and the support to back it up. Licensed and unlicensed systems are available in addition to infrared. Special applications are the norm. Also, compact hand-held radio remote controls ideal for one and 2-speed cranes, conveyors and other applications.