The Miller Trailblazer 302 is designed for the professional welder who needs a welder / generator with excellent arc performance for all types of welding jobs. New quietest engine drive in its class. Fully enclosed case protects the engine and decreases sound levels by 1/3 over previous models. Removable service doors provide easy access for engine maintenance. Trailblazer Series offers the only two-generator system: one for welding and one for generating power, meaning no interaction between tools and the welding arc, and it has the strongest generator power while welding.