The Gossen Metrawatt PROFITEST MTECH is the most advanced electrical tester on the market, offering unmatched accuracy, reliability, and safety. With its innovative features, such as the patented AutoTest function, the PROFITEST MTECH can quickly and easily test all types of electrical installations, from simple circuits to complex industrial systems. Its rugged construction and intuitive user interface make it the ideal choice for professional electricians and engineers.