10 Best Loop Calibrators for Instrumentation Technicians (May 2026)

Best Loop Calibrators for Instrumentation Technicians

When I started working as an instrumentation technician fifteen years ago, my first field assignment involved troubleshooting a 4-20mA loop that was reading erratically. I spent three hours with a basic multimeter before my supervisor handed me a proper loop calibrator. That tool solved the problem in fifteen minutes. That experience taught me why having … Read more

7 Best Battery Analyzers for 18650 Cells (May 2026)

Best Battery Analyzers for 18650 Cells

Finding the best battery analyzer for 18650 cells becomes essential when you are working with salvaged laptop batteries or building custom power packs. Our team tested seven popular models over three months, charging and discharging hundreds of cells to find which analyzers deliver accurate capacity readings and reliable internal resistance measurements. A quality 18650 battery … Read more