As far as I know, the only product I know of that protects against a direct lightning strike is a homeowners insurance policy. I was surprised to find this out myself, but I checked with several very good sources and they all gave me the exact same answer. Richard Grey, Shunyata, ESP, Marsh (Monster) and The Cable Company all told me that if your house is hit by lightning, it comes in through the ground and they have no way of stopping it. I really have no reason not to believe them given that they are the ones who actually make the products. Until NASA or Al designs one of these things, I'll keep unplugging my system every time theres a storm.