DESC: Why Pay Reg Price $4500! Special Offer Sale Price Why Pay More? The All New GPX-4000 is an entirely New Gold Prospecting Metal Detector. A technologically advanced, yet easy to use metal detector. Minelab's Most Powerful Gold Detector ever built and with the built-in LCD display adjustments have never been easier! NEVER BEFORE has Minelab offered a more versatile, technologically advanced yet easy to use gold prospecting metal detector. The GPX-4000 has more power and performance than anything else on the market!