Negative Positive
Title: Useless junk
Review: I had to install some shelves in an area near electrical wiring. Because it was a one-time project I looked for the least expensive stud finder with AC detection I could find. Alas, you get what you pay for... This device found AC all right, everywhere I tried to use it on the wall. Since this was not exactly believable I tried other locations and found that it even detected AC on the back of my hand and in the open air. As an AC detector it is completely worthless. As a stud finder it is marginal but it takes several tries on each spot to find where the stud really is, moving right to left on one side of the stud and then left to right on the other so that you can estimate the middle of the board. It was correct 3 of 5 times so I had to patch some extra holes in the sheetrock. Ultimately it would have been easier and faster to simply measure 16" on center from the edge of the wall and not even bother with this tool. I find this product a complete waste of money.
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