Cincinnati, Ohio – Doran Manufacturing, LLC is pleased to announce the completion of our first 60 years in business. Doran has been creating customized solutions to solve our customers' problems since 1953, including providing reliable transportation safety products since the early 1970s. In addition to providing tire pressure monitoring systems for truck fleets, mining/off-road vehicles, RVs, bus fleets & motorcycles, Doran produces LED/incandescent Exterior Light Monitors and Sleeping ...