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Title: Piece of Junk
Review: The unit constantly states either "wait" or "blow hard". If it can't even function after one drink to test it, how can I possibly expect it to work when I am inebriated and actually need it to? Tried over the course of several days, had other people try, and even watched videos on YouTube. Yes, it's tiny, but it is not reliable. Also, after every malfunction or viable test (we were only able to produce results about 5% of the time) it needs to wait for 15-20 minutes before the next test. So frustrating it took everything in me to not throw it in the garbage in lieu of returning it for a refund.
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