MTL Instruments Group is a good company if you're having a blast. The company, founded in 1971, makes products used to protect against industrial explosions. MTL's Hazardous Area business unit specializes in barriers, isolators, and other products used to protect technicians and engineers in hazardous work environments. Its Surge Technologies unit makes products designed to reduce damage caused by high voltage power surges, while MTL Visualization makes computer terminals for use in hazardous areas. Its Hitech Instruments unit makes process gas analyzers for industries that include energy and petrochemicals. The company is part of the Cooper Crouse-Hinds division of Cooper Industries.