| | Quote: | | | Posted by ehssanehs | | | |
| HI is there a hole or cave detector? and is there a schematic for making some hole detector? I need one if there is.
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A two box detector will detect caves, and other voids, but do not ask me how. The only thing I can suggest is it detects the ground discontinuity, as though it was metallic?
The commercial machines have a switch, so you can switch between *void* and *metal.*
goldigger
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goldigger
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