Audit-Ready and
In Control

Providing reliable and cost-effective accredited calibration, equipment sales, and repairs in all 50 states.

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ISO/IEC 17025 Accredited

At ETI Precision we take calibration seriously—that’s why we're ISO/IEC 17025 accredited. This accreditation demonstrates our commitment to precision measurement, rigorous quality control, and industry-leading expertise. 

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Calibration Services

We come to you.  Offering simplified on-site calibrations in all 50 states for electrical contractors, data centers, & more. Our unique capabilities include high-current & high-voltage equipment.

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Our Products

Precision equipment for industry.
We build intuitive and rugged high-current circuit breaker testers and AC/DC variable power supplies. Our technical support team is readily available if you require assistance.

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Repair & Retrofit Services

Minimize downtime of critical instruments. We repair a wide range of electrical test equipment. Our retrofit services for high-current circuit breaker testers extend the productive life of these expensive & critical assets.

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ETI Precision: Powered by Accredited Labs


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Raising the Standard in Precision & Partnership


For more than three decades ETI Precision has been a trusted name in calibration across all 50 states — known for our commitment to accuracy, reliability, and personal service.

Now, as part of the Accredited Labs family, we’re elevating that legacy even further by combining our local expertise with the capabilities of a nationally recognized group of ISO/IEC 17025-accredited labs.

What This Means for You

  • Local Service, National Strength: You’ll continue receiving the responsive, hands-on service ETI Precision is known for — now backed by the scale and support of a nationwide accredited calibration network.
  • Expanded Capabilities: Gain access to a wider range of metrology services, advanced technology, and enhanced compliance solutions tailored to your industry.
  • Transparent Pricing & Reliable Turnaround: Get straightforward quotes, flexible scheduling, and consistent service that helps reduce downtime and eliminate guesswork.
  • Confidence in Every Audit: From routine calibrations to high-stakes compliance, we make it easier to stay audit-ready and fully documented.

The ETI Precision Commitment, Reinforced

As part of Accredited Labs, we’re delivering even greater precision, broader capabilities, and the same dedication to service you’ve counted on for decades.

Welcome to the next generation of calibration — where local trust meets national excellence.

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Our Calibration Services

Trusted

For more than 31 years ETI Precision has been a trusted partner, helping businesses stay compliant, efficient, and audit-ready. 

Reliable

As a part of Accredited Labs, ETI Precision customers get the personal touch of a local team, backed by a national network.

Experienced

Our service specialists have centuries of combined experience and we proudly employ U.S. military veterans

Qualified

ISO/IEC 17025 Accredited – Meeting and exceeding industry standards

Why Choose ETI Precision?

At ETI Precision we combine the personalized service of a local provider with the resources and reliability of a national network. 

Powered By Accredited Labs

As part of the Accredited Labs family, we bring you industry-leading calibration services backed by ISO/IEC 17025 accreditation, advanced technology, and a commitment to precision.

Customer-Centered Service

We prioritize clear communication, consistency, and reliability—ensuring your equipment is calibrated accurately, on time, and with minimal disruption to your operations.

Tailored Solutions for Your Industry

Our expert team takes the time to understand your unique calibration needs, providing customized support to keep you compliant and performing at your best.

Audit-Ready Calibration in 3 Simple Steps
1

Submit Your
Equipment List
2

Schedule
Your Calibration
3

Stay Compliant
and Audit-Ready
Our company has worked with ETI for over twenty years, during this time we have found them to be a reliable source of calibration and repair services as well as a supplier for some of our test equipment. ETI routinely services over 1,500 assets at 10+ locations.
Schneider Electric
Potomac Testing has been using ETI for over 25 years. We rely on them for all of our calibrations and repairs, ensuring our equipment is maintained properly and compliant with NETA and PEARL requirements. ETI provides our team with the best customer service available.
Potomac Testing
ETI consistently provides great service, from turning our equipment around in a timely fashion to troubleshooting with our technicians over the phone so we can avoid repairs altogether. They are a great partner in the industry.
Protec Equipment Resources
Electric Power Systems has trusted ETI with our annual calibration program at over 30 facilities nationwide for more than two decades. The team at ETI provides excellent customer service, working closely with our local teams to manage onsite service schedules.
Electric Power Systems
ETI is highly responsive to our requests for support, all it takes is a short email and we’re quickly talking to an engineer who knows the product and our applications inside and out. ETI products are intuitive and robust, and their technical team is ready to help make each client successful.
A-Rent