Of course nobody tell us what treasure has found with a metal detector at some depth of 1m and more. Most people have economic advantage from metal detectors and says that only metal detectors work

. But they don't tell us what they find ... except of coins at beaches!!!!!
To be honest... i tried the Mineoro PDC210 without results

, also the same with Ranger Tell. But there are other ways that you can find treasures from long Distance. For me an easy and cheap way is to find a person to teach you the Dowsing method.
Regards