I have seen quite a few parks with low voltage....and it isn't consistent throughout the day even. While I do have a simple meter in an outlet to glance at, I do have a SurgeGuard...not so much for surges....but for the auto-shutdown at low voltage. Problem with just a meter is....I'm not always there to monitor it constantly.
"If the women don't find you handsome, they should at least find you handy." - Red Green