Spectra® V3i -WhitesFebruary 9, 2015
Model 301-ElectroscopFebruary 18, 2015
• Modes of Gold / Silver
• Apply different settings
• 9-volt alkaline battery
• weak battery indicator
Model 20 gold , silver , coins and objects of archaeological finds.This device is a professional device and switch the All Metals / Gold and Silver and comes up to 6 meters deep .