whjohnson:
If they truly work, then where is the hard evidence?
I guess that it is easy to know if your electronics get fried - it didn't work, but that may have been because the surge exceeded the device's capabilities, or a previous surge went unnoticed.
If an SPD works, the tell-tale will show that it has done so (and the cartridge needs to be replaced).
The problem is that if there has been no surge, you just don't know.
whjohnson:
If they truly work, then where is the hard evidence?
I guess that it is easy to know if your electronics get fried - it didn't work, but that may have been because the surge exceeded the device's capabilities, or a previous surge went unnoticed.
If an SPD works, the tell-tale will show that it has done so (and the cartridge needs to be replaced).
The problem is that if there has been no surge, you just don't know.
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