Yes Dick_B I actually did do the search first. Sorry to hit you with yet another post on the subject.
I have learned something though. I was thinking any surge protector would also protect against high or low voltage supplies and shut down power to RV. I guess not. Now I need to decide whether to continue to use the little outlet checker I have now or go all the way with the progressive electrical mgmt system, which seems to be the best choice.
Ozlander...not sure what you mean by use the one I use at home? Only SP I use at home is for my office computer / printer / modem / router.