Originally Posted by wana65stang
Papa GLS I am looking for something I can carry in the cup holder to do a fast go/no go test before I unlock compartment and pull out my EMS -30
Don't know about a cupholder size, but I have this from the site below. It's a good site to have bookmarked as it has kind of useful information on RV electrical and testing.
Go to the "outlet testing" on left hand side
then scroll down and click on the 30 amp or 50 amp tester.
It takes a little to make these, but once done, they are easily plug and play
This link may take you directly to the 30 amp tester.
30-amp RV outlet Tester
and here is the 50 amp link