Negative Positive
Title: Junk -- Bought two, and both have completely different numbers
Review: I bought two of these, and they both come up with completely different numbers even if right next to each other. The two values vary anywhere between 10% and 30%, and thus they don't even move in an even proportion to each other, and thus I can't even use them and mentally adjust for a margin of error. I'm glad these were cheap!
Is the review positive or negative? 