Tracker PI-2 metal detector
The microcontroller-based pulse induction metal detector Tracker PI appeared on the market back in 2003, and immediately gained immense popularity among users. Then the circuit received some improvements, and several versions of firmware were released including and deep and from the “first Tracer” appeared Tracker PI-2, Koschey 2I and Koschey 4IG. Koschey 2And this is …









