Surge protectors are a subject all on their own. My feeling is the majority of consumer surge products, power bars or plug in modules have very limited utility.

Often the surge absorbing electronic devices inside can fatigue or fail with no outward signs that the surge capability no longer exists. Some of these products may have LED indicators, but the indicator may just be for 'entertainment' and not actually an indication of ongoing protection.

There are large capacity surge absorption devices that typically install within the main electrical panel. These tend to have more substantial energy absorbing capacity. They also cost more.