several years ago i did extensive research on sharks while trying to come up a new shark lure. this lure was to use an electrical field. during my research i came across the SharkShield. IT IS ONLY EFFECTIVE AGAINST SOME SHARKS!! none of which are in our waters. but what MUST be taken into account is this... sharks have sensors in their snouts called the "ampullae of lorenzini". these sensors allow sharks to hunt in totally darkness and in the absence of sent. tests have shown that sharks can detect fields as low as .005 of a volt. so where this device may infact keep certain sharks away, it has failed in keeping other dangerous species at bay. and sense sharks can detect such a small field IT WOULD ONLY CAUSE SHARKS TO CHECK OUT THIS STRANGE FIELD THEY ARE DETECTING AND TO CHECK YOU OUT! and we all know that sharks teeth are a sharks hands. so in my opinion using a "SharkShield" will only attract sharks to you and make you a target.
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