(John_F) writes:

The clamp on amp meters that read DC and AC current use a Hall effect
IC. I bought one on Ebay for $60 over a year ago.
Most run of the mill clamp on amp meters use a transformer which will
only read AC.


I've not seen a Hall Effect meter near that cheap. [When I last used
on, such was a multi-thousand $$ Tek probe...] That will work on DC
as well as AC.
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