Since 1936 Associated Research has been providing test & measurement solutions for the electrical safety compliance industry. Our commitment to quality, innovation, and customer service has helped shaped the industry. Throughout the years we have been on the leading edge with product innovation and design. This began early on in our history with the introduction of the Vibrotest, the first battery operated Megohmmeter in the United States. Shortly thereafter, we developed the AC Hypot, our very first Hipot Tester. Hipot testing soon become the strength of our company as we continued to innovate and shape the marketplace.