I've had more success with mine. But as you note, the cable might be
several feet down.

blueman wrote:
Bennett Price writes:

A $35 tool like the following will do the trick
http://tinyurl.com/agr9z



I would seriously doubt that such tool would be any help in tracing
(properly) *buried* wire as per the OP. Heck, these tools have enough
trouble going through 3/4" of sheetrock.