Electrical Test Instruments is a leader in the calibration, repair, and sale of test and measurement equipment. Customer service sets us apart: every member of our team is committed to our customers’ success. We have been providing outstanding customer service with a relentless focus on quality since 1994. We come to you, minimizing the downtime of your critical instruments by offering calibration services at your facility. As a manufacturer of circuit breaker testers and ground-fault testing equipment, we have unique expertise and proprietary technology for calibrating high-current ammeters. We offer a broad range of capabilities within electrical, torque, pressure, physical, dimensional, RF, and microwave calibration services. ETI is also able to repair and retrofit a wide variety of test and measurement instruments. Our emergency onsite repair services are available for your urgent equipment issues. ETI is a reliable partner for high-current circuit breaker testers and ground fault testing equipment. Our rugged primary injection high-current circuit breaker testers are trusted by electrical testing companies and industry worldwide. We offer outstanding customer service, a two-year warranty on all new ETI products, and exceptional quality. ETI prides itself on responsive customer service. Whether requiring technical assistance, product support, remote troubleshooting, or onsite service, our customers turn to ETI for their critical test and measurement instrument needs.