wrote in message
...
On Mon, 6 Apr 2015 21:55:09 -0400, "Jim Wilkins"
wrote:


The cheap ones are far from accurate. I bought 2 on ebay - both
were
in-accurate, and they didn't even match each other. (readings were
different and didn't match my 3 multitesters, that all agreed
within
less than 1/10 volt and less than 1/100 amp

Look closely, mine had tiny calibration trim pots.


These useless pieces of scrap didn't.

They look like flathead mounting screws rather than pots. This one is
2mm in diameter.

-jsw