The Minelab Vanquish 440 contains a function that the Nokta Simplex BT lacks, and that all of the suppliers and detectorists I spoke with rated pretty remarkably: It’s a multifrequency detector. That means it emits electromagnetic fields at many frequencies at once, rather than at just one but variable frequency, https://metaldetector-minelab77654.blogvivi.com/29461281/new-step-by-step-map-for-metal-detector-mappe