NIST-Traceable Calibration Services for Electrical, Mechanical, Electromechanical, and Electronic Measuring Instruments in Roanoke, VA

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 Roanoke 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 Roanoke customers:

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


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NIST-Traceable Electrical Test Equipment Calibration Services in Roanoke, Virginia

Testing companies trust ETI to manage the yearly calibration programs of their electrical test equipment. Our NIST-traceable calibrations address DLRO’s, recloser test sets, oscilloscopes, circuit breaker testers, power analyzers, electrical clamps, meghommeters, power factor test sets, multimeters, power supplies, and a vast range of additional instruments. Our team can calibrate your instruments at your location or remotely at ETI’s calibration workshop. Clients in Roanoke select to have ETI come onsite for one-day turn-around of their equipment with very little downtime. When you send your equipment in for service at our lab, we aim to return your equipment in a matter of 5 to 8 business days. We offer an expedite service for Roanoke clients that need to have quick turn-around of their equipment. 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, Fortune 500 companies, utilities, data centers, nuclear energy facilities, electrical testing businesses, and municipalities of many sizes and shapes in Roanoke, Virginia trust ETI as a crucial calibration partner.

We Support Roanoke Organizations with NIST-Traceable Mechanical Test Equipment Calibration Services

ETI provides NIST-traceable calibration services for a range of test equipment and mechanical measuring, including oil pressure meters, micrometers, infrared inspection equipment, stop watches, pressure controllers, calipers, temperature meters, torque wrenches, tachometers, IR cameras, air pressure meters, and everything in between. We provide both calibration services in our clients’ business locations in Roanoke, VA as well as service at our lab. Our on-site customers in Roanoke take advantage of same-day turnaround of their test equipment at their own facilities with marginal downtime. Our in-house calibration service supplies rapid best turnaround times of 5 to 8 business days, with a speed-up service available to restore your equipment to Roanoke 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. Data centers, nuclear energy facilities, universities, municipalities, electrical contractors, acceptance testing businesses, Fortune 500 companies, and utilities of all sizes and shapes in Roanoke, Virginia rely on ETI to manage their mechanical test and measuring instrument calibration needs.

We Extend the Life of Critical Test Instruments in Roanoke, Virginia by way of our Repair Services

ETI services all of the major brands and models of electrical testing instruments. Regardless of whether your Roanoke facility’s instruments have been in service for many years or are recent to your company, our vast repair capabilities are able to lengthen the lifespan of your most important testing equipment. ETI’s customer services include switchboard meters, digital instruments, frequency counters, multimeters, oscilloscopes, analog instruments, power quality meters, panel meters, power analyzers, lab instruments, clamp-on meters, and a wide variety of other electrical and mechanical test equipment. Every one of our repair services include NIST-traceable calibration of your equipment, in-depth documentation, competitive rates, and a speedy turnaround. Roanoke facilities count on ETI to decrease their downtime and restore their critical test instruments.

Building Trusted Circuit Breaker Testing Equipment for the Electrical Testing Industry Nationwide

ETI manufactures and sells industry-leading electrical test equipment. Our experts specialize in circuit breaker testing instruments, including circuit breaker test sets and power supplies. In addition, we are the U.S. reseller and service center for the complete line of Metrel electrical test instruments and products.

Our product line of high-quality low voltage high current circuit breaker test sets cater to the whole spectrum of electrical testing companies’ needs. Our primary injection circuit breaker testers range from 250A to 6,000 A continuous output, with immediate testing capabilities up to 60,000 A. Our PI-250B, PI-800, and PI-1600 test sets are modular, portable, durable, and lightweight 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 industry in capabilities and reliability for high current circuit breaker testing. All Electrical Test Instrument circuit breaker testers incorporate our leading edge MAC-21 controller, which is a self-contained microprocessor-based metering and control package for primary injection testing. Additionally, we retrofit other manufacturers’ circuit breaker test sets with our MAC-21 controller:

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

ETI’s high quality power supplies are light-weight, sturdy, and reliable. Our product lines are capable of outputting 7.2 A to 20A continuous at 140 VAC. ETI’s power supplies are perfect for circuit breaker charging motor testing.

As the United States authorized service center and reseller for Metrel , ETI is truly a one-stop shop for electrical testing companies’ instrument requirements. We support and sell the entire line of Metrel products, which include meghommeters, DLRO’s, and power analyzers. Our annual calibration programs and repair services on all products we manufacture and sell make ETI the trusted partner of hundreds of electrical testing companies, Fortune 500 companies, utilities, data centers, universities, and municipalities across the country.

Calibration and Repair Services in Roanoke


About Roanoke, VA

An independent city in Virginia Roanoke has a population of 97,032. Located in the Roanoke Valley this is the largest municipality in the Southwestern Region of the state. It is a commercial and cultural hub of the region. It was first called Big Lick which was named so for a huge outcropping of salt. It was initially a hub of roads and trails. Later it became a transportation hub due to its location in the middle of the valley. This aided its rapid growth. This earned it the nickname Magic City too. It was a coal-mining center. It produced the world-famous Bituminous Coal. Coal was exported to many areas across the globe. Then it ventured into designing, manufacturing, and maintaining of the steam locomotives. These were well-known for the excellent steam power world over. Later the manufacturer converted to diesel power from steam as the latter had become obsolete.

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ETI Precision – Electrical Test Instruments supports customers in Roanoke, Virginia, including the following zip codes: 24001, 24002, 24003, 24004, 24005, 24006, 24007, 24008, 24009, 24010, 24011, 24012, 24013, 24014, 24015, 24016, 24017, 24018, 24019, 24022, 24023, 24024, 24025, 24026, 24027, 24028, 24029, 24030, 24031, 24032, 24033, 24034, 24035, 24036, 24037, 24038, 24040, 24042, 24043, 24050. Click here to return to our VA service area page.