GPZ-7000 + GPZ7000 test of standard compared with the modified and upgraded

Here are the numbers 0.05 gram test is 100mm to 110mm = 10% 0.1 gram test is 210mm to 240mm = 14.3% 20 cent coin test 550mm to 640mm = 16.3% There are more improvements that i am testing, might have to go back out over old ground to get the big ones missed in the past.#minelab