NIST-Traceable Calibration Services for Electrical, Mechanical, Electromechanical, and Electronic Measuring Instruments in Florence, SC

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 Florence 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 Florence customers:

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


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NIST-Traceable Electrical Test Equipment Calibration Services in the Florence, SC Area

Testing companies depend on ETI to run the yearly calibration programs of their electrical test equipment. Our NIST-traceable calibrations address recloser test sets, power factor test sets, power supplies, power analyzers, multimeters, oscilloscopes, megohmmeters, DLRO’s, circuit breaker testers, electrical clamps, and a wide range of other instruments. Our experts can calibrate your equipment at your location or offsite at ETI’s calibration laboratory. Companies in Florence decide to have ETI work onsite for one-day turn-around of their equipment with little time out of commission. We offer an expedited service for Florence customers that need quick turnaround of their instruments. ETI is an ISO 9001:2015-accredited calibration laboratory that is ANSI/NCSL Z540 and 10 CFR Part 50 Appendix B compliant. Universities, nuclear energy facilities, Fortune 500 companies, data centers, electrical testing businesses, municipalities, electrical contractors, and utilities of many sizes and shapes in Florence, SC utilize ETI as a crucial calibration partner.

Supporting Florence Companies with NIST-Traceable Mechanical Test Equipment Calibration Services

ETI provides NIST-traceable calibration services for a variety of mechanical measuring and test equipment, including air pressure meters, tachometers, IR cameras, pressure controllers, micrometers, temperature meters, oil pressure meters, stopwatches, infrared inspection equipment, torque wrenches, calipers, and everything in between. We provide services in our customers’ business locations in Florence, South Carolina. Our onsite customers in Florence get same-day turnaround of their equipment at their private facilities with minimal downtime. Our internal calibration offering provides swift best completion times of 5 to 8 business days, with an expedite service obtainable to return your equipment to Florence as soon as is possible. ETI is an ISO 9001:2015-accredited calibration laboratory that is ANSI/NCSL Z540 and 10 CFR Part 50 Appendix B compliant. Acceptance testing businesses, Fortune 500 companies, nuclear energy facilities, utilities, data centers, universities, municipalities, and electrical contractors of all types in Florence, South Carolina rely on ETI to take care of their measuring instrument and mechanical test calibration programs.

Test Equipment Repair Services for Florence, SC Organisations

ETI repairs all major brands and models of electrical testing instruments. Whether your Florence facility’s instruments have been in operation for many years or are recent to your company, our broad repair capabilities can extend the lifespan of your critical testing equipment. ETI’s support services include switchboard meters, oscilloscopes, power analyzers, panel meters, digital instruments, frequency counters, clamp-on meters, multimeters, power quality meters, analog instruments, lab instruments, and a variety of other mechanical and electrical test equipment. Every one of our repairs features NIST-traceable calibration of your instruments, in-depth documentation, competitive rates, and a swift turnaround. Florence facilities turn to ETI to lessen their downtime and fix their critical test instruments.

Electrical Test Intrument’s Circuit Breaker Testing Equipment is Relied Upon by Testing Companies and Industrial Facilities Around The Country

ETI makes 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 entire line of Metrel electrical test instruments and products.

Our product line of top quality low voltage high current circuit breaker test sets serve the entire spectrum of electrical testing companies’ needs. Our primary injection circuit breaker testers range from 250A to 6,000 A continuous output, with instantaneous 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 lead the sector in capabilities and reliability for high current circuit breaker testing. All Electrical Test Instrument circuit breaker testers feature 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:

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

ETI’s premium power supplies are light in weight, durable, and reliable. Our product lines are capable of outputting 7.2 A to 20A continuous at 140 VAC. ETI’s power supplies are ideal 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 entire line of Metrel offerings, including DLRO’s, meghommeters, and power analyzers. Our yearly calibration programs and repair services on all products we make and sell make ETI the go to partner of hundreds of electrical testing companies, Fortune 500 companies, utilities, data centers, universities, and municipalities countrywide.

Calibration and Repair Services in Florence


About Florence, SC

A Florence county city Florence has a population of 38,531. It has the honor of being an all-America city once. Founded originally as railroad hub the city practiced subsistence farming. Timber, cotton, indigo, and so on were produced here. These were exported to other cities in the country and contributed to the economy of the city. The city was named after the daughter of the president of Wilmington and Manchester railroad, Gen W M Harlee. It had a role in the American revolutionary war and was the center for railroad repair and its supply. It was the site for the Florence stockade too. Today it is a robust healthcare industry. The establishment of hospitals and two pharmaceutical plants have aided this. It is known for the supply of agricultural products, paper, pharmaceuticals, textiles, and more. It is a preferred medical care center. It is also a financial and service hub.

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ETI Precision – Electrical Test Instruments supports customers in Florence, South Carolina, including the following zip codes: 29501, 29502, 29503, 29505, 29506, 29541. Click here to return to our SC service area page.