but he needed a way to pick up the fields and feed them into one of the scope’s probes. He ended up building this EFM probe dongle to accomplish the task. He admits that this isn’t much more ...

or “High voltage!”, you should now be able to use their calibrated probe to gain an accurate reading. The O-scope Mayer D4/WG5 Calibrated Fleshy Test Probe is a roughly 4″ (100mm ...