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Title: Stud Finder is a Dud
Review: After this unit failed to correctly locate studs and caused me to drill two dry holes, I ran some tests.Taking a piece of unused wallboard, I placed a test stud on the other side and ran the unit over it.After about 5-10 tries, it determined that it detects the stud about 1" to 1.5" before the unit is actually centered over the stud. In some cases, it failed to even register the stud was there.Finally, I ran it over a 3 to 4' wall which clearly had studs, since I can still see the nail heads and it failed to show anything at all.Actually, during 30 minutes of use, it failed to correctly detect *any* studs.As mentioned by other user, the battery does not come out very easily, as I was trying to remove it to return the unit and ended up having to pry it out with a screwdriver.
