Thanks for all the input, it is very helpful. To Elizabeth's last point, the usefulness of a "power conditione" includes both functions, typically. Frankly, it the surge protection is kaput after a period of time, then one is left with only power conditioner and no protection for their gear in the event of a voltage surge. I think both functions are equally important.
Question: is there a way to discover if the surge protection is still effective in a unit?
Question: is there a way to discover if the surge protection is still effective in a unit?