conduit finder

Gentlemen

We are going to be doing a tear off on a local dairy. They have conduit everywhere under the roof deck. Does anyone know of a reliable device that will trace these under a steel deck? Any help would be appreciated.

>>>

ouch! Some of the electrical meters will signel when ther is a current. That may work!>>>

just get a sawzal with a long blade and a couple of FNG'S when they start smoking mark that spot :laugh:>>>