NIST-Traceable Calibration Services for Electrical, Mechanical, Electromechanical, and Electronic Measuring Instruments in Wilmington, NC

Electrical Test Instruments, LLC DBA ETI Precision (ETI) is a leader in the calibration and repair of test and measurement equipment, specializing in high-current and high-voltage instruments.

We provide onsite services in the Wilmington region, minimizing the downtime of your critical instruments by offering calibration services at your facility. Our NIST-traceable calibration services encompass a wide variety of electrical, mechanical, radio frequency (RF), pressure, physical-dimensional, and environmental instrumentation. For more information

We are an ISO 9001:2015-certified, ISO/IEC 17025:2017-accredited, and ANSI/NCSL Z540-1-1994-accredited calibration laboratory. We offer MIL-STD-45562A-compliant calibrations and calibrations in accordance with 10 CFR Part 21 and 10 CR Part 50 Appendix B upon request.

Contact us today
Phone: 410-857-1880

Just some of the products and services we offer our Wilmington customers:

  • Calibration of Test & Measurement Equipment
  • Torque Wrench Calibration
  • IR Thermometer Calibration
  • Frequency Counter Calibration
  • Process Calibrator Calibration
  • Temperature Probe Calibration
  • Ammeter & Shunt Calibration
  • DLRO Calibration
  • Sound Level Meter Calibration
  • Digital Multimeter Calibration
  • Oscilloscope Calibration
  • Stopwatches & Timers
  • Thermocouple Calibrator Calibration
  • Calibration of High Current – High Voltage Equipment:
  • Relay Test Set Calibration
  • Secondary Test Set Calibration
  • Single & Three Phase TTR Calibration
  • Current & Potential Transformers
  • AC and DC voltages above 100kV
  • Primary Injection Test Set Calibration
  • Power Quality Analyzer Calibration
  • Power Supply Calibration
  • High Voltage Detector Calibration
  • Earth Ground Tester Calibration
  • Megohmmeter Calibration
  • Hipot Tester Calibration


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NIST-Traceable Electrical Test Equipment Calibration Services in the Wilmington, NC Area

ETI provides NIST-traceable calibration services for many types of electrical test equipment, which include power factor test sets, circuit breaker testers, meghommeters, power analyzers, power supplies, oscilloscopes, recloser test sets, multimeters, DLRO’s, electrical clamps, and everything in between. We present onsite calibration support services at our clients’ facilities in Wilmington as well as service at our calibration lab. Our on-site calibration customers in Wilmington enjoy same-day turnaround of their test equipment in their private facilities with marginal downtime. Our internal calibration service delivers swift industry-leading turnaround times of five to eight business days, with an expedite service available to return your facility’s equipment to Wilmington as soon as possible. ETI is an ISO 9001:2015-accredited calibration laboratory that is ANSI/NCSL Z540 and 10 CFR Part 50 Appendix B compliant. Universities, electrical contractors, electrical testing businesses, municipalities, utilities, data centers, Fortune 500 companies, and nuclear energy facilities of many sizes and shapes in Wilmington, North Carolina rely on ETI to handle their electrical test equipment calibration programs.

NIST-Traceable Mechanical Instrument Calibration Services in the Wilmington Area

ETI’s NIST-traceable calibrations of mechanical measuring and test equipment are trusted by testing businesses around the country. The instruments we support include calipers, IR cameras, oil pressure meters, infrared inspection equipment, stop watches, air pressure meters, pressure controllers, micrometers, tachometers, temperature meters, torque wrenches, and everything in between. Our experts are skilled in the calibration of mechanical equipment at our clients’ facilities in Wilmington, North Carolina. Our company also offers a mail-in option to service your critical mechanical test equipment at our in-house calibration lab. Calibration services in Wilmington is an economical and hassle-free option for local companies who wish to curtail their down time. Our mail-in option also provides fast turnaround times of 5 to 8 business days, ensuring our customers in Wilmington get their critical equipment serviced promptly. ETI is an ISO 9001:2015-accredited calibration laboratory that is ANSI/NCSL Z540 and 10 CFR Part 50 Appendix B compliant. Nuclear energy facilities, universities, Fortune 500 companies, acceptance testing businesses, electrical contractors, utilities, data centers, and municipalities of many sizes in Wilmington, North Carolina rely on ETI to oversee their mechanical test and measuring instrument calibration programs.

How We Extend the Life of Critical Test Equipment in Wilmington, NC by way of our Accredited Repair Services

ETI repairs all major brand names and models of electrical testing instruments. Regardless of whether your Wilmington facility’s instruments have been in operation for many years or are recent to your company, our vast repair capabilities are able to extend the life of your essential testing equipment. ETI’s repair support services include lab instruments, panel meters, multimeters, power quality meters, switchboard meters, analog instruments, clamp-on meters, oscilloscopes, power analyzers, frequency counters, digital instruments, and a wide range of additional electrical and mechanical test equipment. All of our repair services feature NIST-traceable calibration of your instruments, thorough documentation, competitive pricing, and a fast turnaround. Wilmington, NC facilities turn to ETI to decrease their down time and restore their critical test instruments.

We Produce Industry-Leading Circuit Breaker Testing Equipment for the Electrical Testing Industry Across The Country

ETI manufactures and retails industry-leading electrical test equipment. We specialize in circuit breaker testing instruments, which include circuit breaker test sets and power supplies. In addition, we are the U.S. reseller and service center for the entire line of Metrel electrical test instruments and products.

Our product line of high-quality low voltage high current circuit breaker test sets provide for the entire spectrum of electrical testing companies’ requirements. Our primary injection circuit breaker testers range from 250A to 6,000 A continuous output, with instant testing capabilities up to 60,000 A. Our PI-250B, PI-800, and PI-1600 test sets are lightweight, portable, durable, and modular whilst outperforming competing products’ capabilities at their price points. Our stationary PI-2500, PI-4000B, PI-5000, and PI-6000 circuit breaker test sets also best the market in capabilities and reliability for high current circuit breaker testing. All Electrical Test Instrument circuit breaker testers incorporate our state-of-the-art MAC-21 controller, which is a self-contained microprocessor-based metering and control package for primary injection testing. We also retrofit other manufacturers’ circuit breaker test sets with our MAC-21 controller:

  • expanding their capabilities,
  • extending their useful lives,
  • and revamping the circuit breaker testing capabilities of our valued clients.

ETI’s high quality power supplies are lightweight, durable, and dependable. Our products are capable of outputting 7.2 A to 20A continuous at 140 VAC. ETI’s power supplies are optimal for circuit breaker charging motor testing.

As the U.S. reseller and authorized service center for Metrel , ETI is genuinely a one-stop answer for electrical testing companies’ instrument needs. We sell and support the full line of Metrel products, such as DLRO’s, meghommeters, and power analyzers. Our yearly repair services and calibration programs on every product we produce and sell make ETI the go to partner of hundreds of electrical testing companies, Fortune 500 companies, utilities, data centers, universities, and municipalities across the country.

Calibration and Repair Services in Wilmington


About Wilmington, NC

A New Hanover County city Wilmington has a population of 123,744. This port city gets its name after the first Earl of Wilmington, Spencer Compton. The riverfront here is ranked as the best riverfront in the country. It is considered one of the dozen distinctive destinations. The city has four beaches Fort Fisher, Carolina Beach, Wrightsville Beach and Kure Beach. Owing to the presence of these it is a tourist destination. It was once a majority-black city and was racially integrated. Wilmington’s daily record, the country’s first black news daily was established here. The city earned the name as the Coast Guard City. It had an active role in the American Revolutionary War and The Civil War. A railroad built from here to Weldon was the world’s longest rail track then. Establishment of the Wilmington gas light company gave freedom from the street oil lamps to the city dwellers.

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ETI Precision – Electrical Test Instruments supports customers in Wilmington, North Carolina, including the following zip codes: 28401, 28402, 28403, 28404, 28405, 28406, 28409, 28412. Click here to return to our NC service area page.