Gunnar of bradford MN
New member
I used to own an M-6 and it had a depth read out that was part of the 700,00 tag on that one but i have no problem knowing exaktly how deep a coin is whith my compadre if i get a loud dobble beep it is on the suface if it sounds like a (bapp bapp ) its 1 or 3" and if it gets a softer smooth sound like a vhhh vhhhh its about 3.5 to 4.5 " to 5" after a bit you can really tell