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Sally DavisJul 28, 2025
Why does my Harbor Freight Tools 43149 Metal Detector display false signals?
- AamyreynoldsJul 28, 2025
False signals may appear on your Harbor Freight Tools Metal Detector if you are sweeping too fast or at the wrong angle. Try pinpointing the target from several different angles. Also, heavily oxidized metals can cause false signals. If the detector does not display and sound the same signal each time, the target is probably heavily oxidized metal.