G;
Everyone seems to forget you can turn a foot of #10 solid copper into a pretty fair homebrewed current shunt. From memory here. 1 foot of it will drop 1 millivolt [mv] per amp through it. I did a story on it once. Even the cheap meters should do millivolts DC or even AC if you want to look at it.
Certainly good enough for relative readings for the average Joe?
Could calibrate it at a low known current against a cheap ammeter.
Just thought it might be useful.
How bout the Hurd Solar Shunt Kit?
Anyone remember DanB's home built one from a HD mag a chopstick and a hunk of plywood? It was very sensitive as it could track the increased draw from bass notes on his amplifier playing music.
Heck some savy guy needs to score a pallet of external current shunts get them on EbaY cheap. My supplier has random external shunt DC panel meters [with no shunts] in stock but I don't find much incentive to list them individually on my EbaY stuff.
Just ideas I come up with...
Tom