I don’t know if any of my meters work correctly or not. We haven’t planned on ever using them again, so I never have tried them.
As far as getting one calibrated for accuracy, I wouldn’t have a clue who might still do that. Which makes me wonder...
Who was responsible for making sure that they measured correctly? Were there inspectors that went around checking the meters for accuracy? I don’t see any stickers on my meter that would indicate that it had been checked by an Official. Surely they didn’t depend on irate customers to let them know that their meter was out of whack!
CD in Oklahoma