Maximum detection depth is determinant by many factors. However, the Fisher F44 is a surface exploration metal detector that can find items like coins up to 10” in neutral soil and larger objects even deeper.
The 6-segment Depth Indicator is calibrated for coin-size objects and segments are filled from top to bottom. The more segments that filled up, the deeper the object is buried. One segment indicates the object is less than 2” deep. Three segments indicate it’s less than 4” deep, and all six segments indicate it’s more than 6.5” deep.
For objects that are not coins or coin-sized, the Depth Indicator scale will still relay a response, but it will require more information to determine what type of target it is and how deep it’s buried. For example, if all segments are filled up, it could be coin that’s buried as deep as 10”, but it could also indicate a larger object buried even deeper. You will have to use discrimination modes and the pinpointer feature to further investigate the target.