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Title: zero star is more accurate
Review: This stud sensor is useless. It beeps randomly. If you tried it ten times, you will get ten different results. I wish I had seen other people's review before buying it at Walmart. A total waste of money and time.Update: This stud sensor is already in trash (seems impossible to return after you cut the hard plastic wraps). I got the zircon i65 instead. Even though the ac warning of i65 does not work well, at least it locates the studs.
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