[Discuss] Wire tester (like a tone tester)

[jack at coats.org (Jack Coats)]

I have seen (but not used) some high $$ wire tracing equipment.  From
one end it can tell how far down the line (wire) then end or any break
is on each wire separately.  It couldn't tell you where the other end
is, just how far away the end is as the wire goes.

Wish I could remember the brand or even what it was called for you.