Originally Posted by CarpeDiem
If I need the most expensive surge protector, that's fine. But if a lesser model will do the job and I don't have to become an engineer to use it, even better.
Number of anomalies that are called surges are more than you have fingers. No protector protects from all. Anomalies that are typically problematic in campgrounds include low voltage, high voltage, open neutral, and floating safety ground. A protector, at minimum, should protect from those anomalies by disconnecting power.
Many will discuss a long list of other anomalies including frequency variation, harmonics, missing earth ground, RFI, bad power factor, lightning, EMI/EMC, etc. Those are rarely a problem, are not detected by protectors, or are already made irrelevant by what is inside appliances.
Your concern is to avert problems now; not get insurance payments next month.
Does a protector you are considering at least do those basic minimums? Unfortunately, protector selection means first learning what various anomalies are to therefore judge which are most problematic.