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Title: Inconsistent and unreliable!
Review: The directions are very poorly done...very difficult to relate to the operation of the unit. I purchased some calibrated uranium ore to test this gadget with and found the results to be totally unreliable and very inconsistent. I ended up returning it to the vendor and purchasing their next level up unit called the 'Monitor 4' which performs GREAT (it was also almost double the cash, but I guess you get what you pay for). The vendor was a pleasure to deal with.
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