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Title: Very limited use device
Review: When this product came out I was hopeful that it would be more useful than its predecessors. Unfortunately, it seems to have the same problems and limitations, specifically:1. It is only accurate on single layer drywall covering wood frame construction with either no insulation, or batt insulation that does not have a foil face.2. It does not work on surfaces such as lath & plaster, button board, or covered shear walls. (Surfaces that are present in most homes build pre 1960)3. It appears too sensitive when locating electrical current in walls. This problem makes it impossible to locate studs if they are within a foot or so of electrical current, because the electrical 'alarm' beeps until reset.Definately NOT a buy!
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