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*With the Pro Fake Gold Testing Devices produced by the American company Sigma Metallytics, you can analyze metals such as gold, silver, platinum, palladium and rhodium with 3 different testing processes. You can usually catch fakes with low carat or hidden metals in liras, coins, packaged gram gold and gold bullion.                                                                                       *The device helps detect fakes by looking at the surface of the metal to be tested with the Surface test, the inside with the Thru test, and the specific gravity with the Density test..                                                                                                                                                        Thru Readings ;                                                                                              Make sure your pieces are 100% authentic using the PRO's thru readings. The onboard sensor checks all the way through samples, meaning there is nowhere for counterfeits to hide. You can rest easy knowing there are no inserts or bad metals in your coins.                                                                                                                     Gravity Testing ;                                                                                            Put the calipers away. Using known metal densities and an automatic thickness measurement, the PRO takes the entered weight and calculates the expected size of your sample. Simply compare your coin or bar to the calculated size to ensure it's the right density.                                                                                                                                                                    Surface Testing ;                                                                                            It reaches a depth of 0.18 - 2.50 mm with surface testing and measures the resistance of the metal, guiding the user to determine whethe