Originally Posted by ZoominC6
The plug in voltmeter that Steve Bryant (previous poster) recommends is a 'must have' piece of hardware in our trailer along with a surge protector we plug in to the power pedestal prior to powering up. We wrote off one delightful campground in New Hampshire due to the camp owner shrugging his shoulders and becoming defensive over us pointing out his power pedestal's low voltage.
Mostly I'm out boondocking, where this is not an issue. And I've never had a park owner get defensive. But the few times I've been staying somewhere that had shore power and it had low voltage, I have had owners / managers offer me a site on a loop with newer / better wiring that solved the issue. I used to use my big Fluke meter to check voltage, but now have one of those little inexpensive plug-in ones, and it works fine. It's accurate enough for my usual purposes. The big meter stays in the tool box unless I have to make a point.