JM Test Systems, LLC.
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JM Test Systems is a full-service metrology lab with 9 locations across the US housing 7 laboratories, specializing in calibration & certification, equipment repair, electrical safety testing & equipment, equipment sales & rentals, on-site calibrations, and utility tools. Services:
Calibration & certification
Test equipment repair
Test equipment sales
Test equipment rentals
Electrical test equipm
07/02/2026
This year for America's 250th Anniversary, we celebrate freedom, unity, and the spirit that brings us all together.
Whether you're lighting up the grill, watching fireworks, or just enjoying the day with family and friends, we hope it's filled with pride and joy. 🎆🎇
Stay safe, have fun, and enjoy the holiday! 🇺🇸 ❤️🤍💙
06/18/2026
📷
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.
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7323 Tom Drive
Baton Rouge, LA
70806