[gorillarick]

The Seco, and most other surge protectors usually don't "wear out" or get too old.
They die in service. Meaning they protected your home. The reason you have it.
Hundreds in damage instead of thousands. Thanks !

Worth having both, on the meter, and on the circuit breaker box. They are for a slightly different scenarios.

Then, you will still need surge protectors inside to protect your delicate electronics which are more sensitive.
You need one at each outlet where electronics are plugged-in. TV, computers, , , It is impossible to protect everything.
That's why you need the less sensitive one on the circuit breaker box also.

previous Florida address:
I had a circuit board on my electric range blow. Yes, I know from a thunder storm, there was other damage.
Almost a thousand to fix it. I bought a new range.