First, some of you are suggesting that he overloaded the circuit, tripping the power pedestal. Go back and reread his original post. The power pedestal breaker did NOT trip. His surge protector tripped and disconnected (as it's supposed to when it senses either high or low voltage), but it did not automatically reconnect UNTIL he turned the power pedestal off and then back on.
Second, it is wrong to suggest that he "made a mistake" by purchasing the Camco unit because it does not have a digital display. That's like saying that if you have an older vehicle that has ONLY lap belts, you may as well not even bother wearing them since they are significantly less protection than lap/shoulder belts. Would the more expensive display units be a step up? You bet. Is his Camco unit a significant step up from MOST RVers who use nothing? Yes indeed.
3rd, if he goes to another campground and the problem does not recur, then he CAN indeed be fairly comfortable that his rig was not the problem.
Yes, even a cheap plug-in voltage display is a great thing to have, but unless he is watching it 24-7 and just happens to see the exact moment that the voltage spikes or drops, he will still not know what exactly caused the surge protector to trigger; high voltage or low.