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Minelab SD, GP, & GPX Classroom Forum


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DD coil Whether exclude iron metal
Posted by: JASON CHINA
Date: January 03, 2019 07:34AM
Gpx4500 or gpx5000, and I remember Steve saying, PI detector is any metal that responds, but a friend of mine told me that a dd coil can remove iron. So what's going on here? That friend can explain