This a recent entry into the Minelab gold metal detector line up. I have personally tested this one and it is amazing how well it rings out on 1 grain gold flakes. If you're not familar, 1 grain of gold is almost too small to pick up with your fingers! This unit is easy to use and very lightweight.
Just a few of the things that make this unit great:
Automatic Noise Cancel, Auto Ground Balance, Automatic Sensitivity
45 kHz VLF & 24-bit signal processor - This primary combination greatly boosts sensitivity to gold beyond that of other single frequency VLF detectors over a wide range of nugget sizes, without introducing excess noise and false signals.
Improved Discrimination - The GOLD MONSTER 1000 also has improved ferrous/non-ferrous discrimination and copes better with conductive (salty) soils than higher frequency detectors, making it the perfect choice to maximize your gold recovery.