Minelab GPX 4000

The Minelab GPX 4000 is one of Minelab’s older gold metal detecting metal detector models. The GPX 4500 was preceded by the Minelab GPX 4o00. The GPX 4500 is a new gold detecting metal detector from Minelab which includes vast improvements over the GPX 4000 model. The GPX4000 was not so much an upgrade from [...]