ETI (Electrical Test Instruments)
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ETI Electrical Test Instruments stands as a leading electronics manufacturer based in Chattanooga, Tennessee, specializing in precision electrical testing equipment and calibration services. Since 1994, this established company has developed comprehensive manufacturing capabilities focused on high-current circuit breaker testing equipment and AC/DC variable power supplies. Their flagship PI-1600 Gen2 portable circuit breaker tester delivers reliable 1,600-amp testing capacity, engineered for durability in demanding industrial environments. The company operates as an ISO 9001:2015 certified and A2LA accredited facility, ensuring rigorous quality standards throughout their manufacturing processes. ETI maintains expertise in producing intuitive and rugged high-current testing instruments that serve electrical contractors, data centers, and technical testing professionals nationwide. Their engineering team designs equipment specifically for field applications, emphasizing portability without compromising performance capabilities. Beyond manufacturing, ETI provides comprehensive calibration services across all 50 states, having calibrated over 40,000 instruments in the past year alone. Their technical specialists offer repair and retrofit services that extend equipment lifecycles, supporting sustainable manufacturing practices. The company serves diverse industries including utilities, Fortune 500 companies, universities, and municipalities through both on-site and facility-based services. With over 25 years of specialized experience in electrical testing technology, ETI continues advancing precision measurement solutions while maintaining strong customer relationships built on technical excellence and reliable service delivery.