depth test

hi friends, this s Mikko from Finland, i need your help please ! i know many places where there s a gold treasures but the problem as i know is those treasure are about 4 meters deep underground !! i have a Makro gold racer and i know it didnt go that deep, so i ask if there s some kind of...

I can't seem to find any sources out there,that either ground test or air test metal detectors for ferrous metal detection. It would be nice to know how deep different metal detectors can go on picking up on ferrous metal objects. Anybody out there with any such info,I would surely appreciate...

Here are the depth results results of a U.S. quarter in the ground using boost mode with 99 sensitivity and 50 discrimination with 3/4 of it's battery life. Quarter=9'' with 60% mineralizied soil.