Bless you for putting a little smart into an old technology that is very troublesome. Excellent metal and AC detection. After repeated passes, the pin gets stuck in the middle. Has a "fine" or "deep" tree scan. Like everyone else, finding a ceiling (with a texture that curves up and down) and flooring (with a subfloor) is still difficult. But that also applies to the most expensive ones, so why pay more. Tip(?) Sound technology on top of that? (I know you like to solve a problem there)
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