A modern technology device with several features... *It has a complete iron separation feature... And it has a target identification feature with numbers *Like number 70 on the screen and above to 90 and 97, it symbolizes gold. *Iron is a number less than fifty 50 and 20 *From number 50 to 70 symbolizes silver, copper, and lead... *Depth from one meter to two and a half meters The depth varies depending on the type of land, soil, and terrain.