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Phazx Systems BodyScan 2010
(It's gone. Another scam bites the dust.)
These people sell a very expensive instrument to measure electrical resistance across the skin. It seems that this technique can be used to greatly increase the income of people who buy the machine and then use it to test "patients" who come in complaining of various ailments. Or even to find ailments that the "patients" didn't know they had.You can read what the US Federal Drug Administration thought about this machine here.