Drew Technologies' TVIT offers flexibility, rugged performance and its advanced software provides for improved diagnostic and flash repairs for today's heavy duty vehicles. TVIT provides vehicle coverage for today’s most popular diagnostic and reprogramming services from Allison, Cummins, Freightliner, Mack Trucks and more. Supporting RP1210 systems, TVIT is equipped to also provide coverage for manufacturers using SAE J2534 standards found in both heavy and medium duty vehicles.