Beginner Gold Detector? - Detector Prospector Forum ...
The units released so far are the SD2000, SD2100 (and V2 variant), SD2200D (and V2 variant), GP Extreme, GP 3000, GP 3500, GPX 4000, GPX 4500, GPX 4800, and GPX 5000. The Minelab SD2000 was the first of the series, a genuine breakthrough in metal detector technology. It is the basis on which all the other models were develop.