Multimeter needs for my situation?
I'm troubleshooting an EV charger. I'm fairly certain it's a hardware problem not a wiring problem, but to do a warranty replacement they want voltage measurements between three terminals (L1-L2, L1-G, and L2-G) on a wiring receptacle (pic attached). Seems easy enough, but I've never done it before. This is attached to a 50A breaker. It was professionally installed maybe a year ago. I'd rather not pay an electrician just to take a few measurements. However, I also don't want to die or start a fire.
Multimeters range in price from disposable to extremely expensive. I've never needed one in my life and probably won't use it more than once so I don't want to spend a lot of money. Because there is a lot of power going to this thing, I'm worried about safety. Reading descriptions of multimeters on Amazon has not really helped me understand if I need something more advanced/expensive, but I am seeing that most say "max 10A."
Am I worried about nothing? Can any inexpensive multimeter work for this? What happens if I get a "max 10A" multimeter and try to take a reading?
