The Magnetic Sensor which is clear from its name is used for circuits that work with Magnetic diffusion currents and better Detect Magnetic reflections from Metals and sources and Targets with a Magnetic Field and Magnetic circuits in practice do not have the power to differentiate for Metals of the same Range (class) or Magnetic devices or Detectors with Magnetic circuits for Separation according to the principles of Detection do not have full ability in Separation  or  Discrimination and the Magnetic circuits in devices or Detectors that emit Magnetism do not have the conditions for regular Detection of Metals of the same Range (class) especially in Depth and the presence of a Magnetic Sensor In any type of device with Magnetic circuits it has no effect on the Separation and discrimination of metals and Gold and Silver in Depth