Measurement Notes

Practical articles for traceable test and measurement work.

I Tried to Save My Client $3,600 on Test Equipment. It Cost $5,180.

A one-person test shop skips the National Instruments thermocouple module for a $129 USB logger, misreads a PWM heater with a Fluke 117 True RMS multimeter, and trusts a phone thermal camera for board-level checks. The beta failure and the $5,180 re-test that followed.

2026-08-25 · Marcus Feld

Stop Buying Test Tools. Start Building a Measurement System.

A quality manager's take on why single-point tools like voltage tester pens and handheld thermal cameras fail in production—and why a National Instruments-based system plus real support is the reliability bet.

2026-08-24 · Marcus Feld