Minelab X-Terra 505 - $599.99

If youre looking to get into the hobby of treasure and relic hunting, then start off right with X-Terra. It has an ultralightweight, balanced design with high-precision 7.5kHz VFLEX technology on the waterproof concentric coil. It also accepts two frequencies 7.5kHz for large, deep targets and 18.75kHz for small, shallow targets. To change frequencies, all you have to do is change coils, not whole detectors. Includes depth and battery-level indicators. Requires four AA batteries (not included). Imported. - $599.99