In the Main Detector circuit of the Image Scanner or Metal Detector Image Scanner or GPR or Ground Penetrating Radar or Ground Handy Radar Scanner has Size and Surface settings such as Threshold, which reveals or detects the level of reflection of targets and sources which level settings And the volume like threshold is placed in the software of any type of image scanner finder to detect the desired target or Gold and Silver by the designer and the Size and Surface threshold of the main circuit of the image scanner Detector is directly related to the Size and Surface settings or Threshold of the software This type of condition that has Size and Surface Threshold circuit is only specific to the Image Scanner designed according to the principles of Frequency Radar that operates with Low Frequency emission and has VDI Number settings in Edit and Size and Surface Threshold.