OK, HRL, I don't have the fine threads, and am going to find some AC R45S plugs, to replace the champions. Based on a posts of yours and Wrenchbender from years ago. I hope they are still being made. Bartomos, my meter is a Klein MM300. I got it to have a ammeter option. I was checking for a draw on a dodge truck. Then I closed the door tight and solved the problem. I like the meter, does all I need.
