>The one I bought consists of a magnet on a pointer. Move the thing
>around, find a nail, stud found!

;-). This is the new version used since the knuckle-knocking method was
obsoleted <g> Also never use a tool handle for knocking to find the
heavier sound of the stud ... it's 'inappropriate'. You have to use proper
certified electronic tools.

Grid dip meters can be used to find hollows, pipes and also metal in
walls.  The exposed coil is sensitive to both E and H perturbations. I did
this and it works fine.

Peter

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body