JM Test Systems, LLC.

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Check out this vintage GE milliamp meter — a true classic in test equipment history!

Originally used in the mid-20th century, these meters were standard tools for technicians working in industrial automation, power generation, and process control. Before digital displays and smart sensors, this rugged device offered reliable, needle-point accuracy for reading milliamp signals — a cornerstone of current loop measurements in 4-20mA systems.

Made with a durable metal casing, glass face, and precision coil movement, GE's meters set the bar for durability and dependability in harsh environments. It's the kind of tool that helped build the industries we rely on today.

👍 While technology has evolved, the legacy of quality lives on — and we're proud to carry that standard into the future.

⚡ Houston, we're here! Come find us at Booth 8 at EPC 2026! 🙌

Stop by, meet the team, and let's talk calibration, testing, rental, repair, and reliability solutions for your operations.

📍 Booth 8 | George R. Brown Convention Center, Houston, TX

📅 June 16-17, 2026

🎉 Please join us in welcoming Arlanda Comminie to the JM Test Systems team!

Arlanda joins us as a Marketing Operations Specialist based in Baton Rouge, Louisiana. 🎯 He brings more than 10 years of experience in marketing and communications, with a background in healthcare, government, and nonprofit organizations.

We're excited to have Arlanda on board and look forward to the experience and creativity he brings to the team.

Welcome to JM Test Systems, Arlanda! 🙌

Setting the Standard in Pressure Calibration


Where accuracy meets reliability — our expert technicians use high-precision equipment to calibrate your pressure instruments to the most rigorous standards.

We calibrate:

✅ Pneumatic Calibrators

✅ Pressure Switches

✅ Hand Pumps (Hydraulic, Pneumatic & Vacuum)

✅ Pneumatic Controllers

✅ Vacuum Variators

✅ Manometers

✅ Pressure Transmitters & Transducers

✅ Deadweight Testers


Whether you're in oil & gas, manufacturing, or utilities, you can trust us to keep your pressure instruments performing at their best.


🌐Explore our calibration capabilities at jmtest.com/services/

⚙️ Reliable process instrumentation keeps your operations accurate, safe, and running efficiently.

Take a closer look at some of the key components that support day-to-day performance across multiple industries. 👇

📍 Visit jmtest.com or call 1-800-353-3411 to learn more.

Skip the cost of buying gear you only need for a short-term job. JM Test Systems has one of the largest rental inventories in the industry, and every piece ships fully calibrated and ready to work with no storage headaches, no recalibration hassle.

This season's most-requested rentals:
✅ Power loggers and analyzers
✅ Insulation resistance testers (megohmmeters)
✅ Ground resistance testers
✅ Hipot testers
✅ Thermal imaging cameras
✅ HART communicators and process multimeters

If anything fails on the job, we'll swap it out so your project never skips a beat.

📍 Visit jmtest.com/rental or call 1-800-353-3411 to check availability.

⚡ JM Test Systems is bringing Electrical Safety Training to Las Vegas on June 16-17.

This hands-on training is designed to help electrical workers strengthen their safety knowledge, stay compliant with industry standards, and build safer work practices on the job. 🦺

Join us in Las Vegas and invest in the safety and success of your team. 🎰

Register today: JMTEST.COM/TRAINING

JM Test Canada is proud to be Western Canada's first authorized PPE partner for OEL and an authorized Calibration and Repair Partner for Megger! 🎉🍁

This means our customers now have direct access to factory-authorized calibration and repair services performed by OEM-trained technicians, reducing downtime, improving turnaround times, and keeping critical equipment performing at its best.

As Western Canada's first OEL-authorized partner, we also provide comprehensive Arc Flash PPE solutions, including testing, certification, compliance, and rubber glove testing. 🦺⚡

We're committed to building the expertise and capabilities our customers depend on.

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⚡ Be Storm Ready – Before It Hits ⛈️

Hurricane season is here. Now’s the time to prep your gear and keep your team safe.

Need inspections, repairs, or rush calibration? We’ve got you covered – even onsite. Visit https://jmtest.com/electrical-testing-services/ or call us at 1-800-353-3411.

⚡ Be Storm Ready – Before It Hits ⛈️

Hurricane season is here. Now’s the time to prep your gear and keep your team safe.

Need inspections, repairs, or rush calibration? We’ve got you covered – even onsite. Visit https://jmtest.com/electrical-testing-services/ or call us at 1-800-353-3411.

Please join us in welcoming Victoria Brown to the JM Test Systems team!

Victoria joins us as an Outside Sales Representative based in San Antonio, Texas. She brings 14 years of B2B sales experience, with a proven track record of building strong customer relationships, growing territories, and delivering results across multiple industries.

We're excited to have Victoria on board and look forward to the experience and expertise she brings to the team.

Welcome to JM Test Systems, Victoria!