Electrical Test Instruments, LLC is a leader in the calibration and repair of electrical test equipment and electrical & mechanical measuring instruments. ETI also manufactures high current circuit breaker test sets and other electrical test equipment.
Serving clients nation-wide, ETI offers repair and NIST calibration and certification on-site at your facility or at our state-of-the-art calibration facility.
ETI specializes in on-site calibration and certification of virtually all types of electrical test equipment including circuit breaker testers, protective relay test sets, insulation testers, high voltage test sets, low resistance ohmmeters, clamp meters, multimeters, etc.
On-site calibration of high current ammeters, such as used in primary injection circuit breaker test sets, is a specialty of ETI.