3 years later, still going strong.
Installed this item 3 years ago to protect a DSL line. In the last 3 years have had lightning strikes as close as the one that fried the previously unprotected DSL modem, router AND computer. (It was a doosey, literally vaporized the copper tracings on the pcbs in all 3) Hard to be 100% certain if it has prevented such strikes, as nothing has melted since, but if it is doing its job, nothing should. Installation is simple but does require a properly grounded outlet and a screwdriver.
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