[size=large]I just bought the 3D that I used in the video below brand new. It will only air test at the most 10 1/2" with a good repeatable signal. While detecting yesterday I only dug one rusty piece of iron that was about 4 inches long and as big as a pencil. It was giving a double beep so I probably should not even have been fooled by it but I dug it anyway just in case. The other 3D I had would definately go deeper but I found myself digging a lot of deep rusty nails. I wonder if the super hot ones may be more prone to iron falsing.
Next question. The disc knob on the new one I bought is not lined up correctly. How can I get the knob off to line it up right? I see a little hole that looks like it should be a place to use an allen wrench but its not. Thanks.[/size]
Next question. The disc knob on the new one I bought is not lined up correctly. How can I get the knob off to line it up right? I see a little hole that looks like it should be a place to use an allen wrench but its not. Thanks.[/size]