Why Can’t My UNI-T Digital Multimeter Measure DC Current Without Looping the Wire Multiple?
I’ve noticed many people ask why their UNI-T multimeter needs wire loops to measure DC current. This matters because it affects how you test car batteries, solar panels, and other low-current devices. The short answer is your multimeter’s clamp jaw needs enough magnetic field to get a reading. Looping the wire multiplies the magnetic field, … Read more