The SDC 2300 is a detector for picking up gold nuggets, it uses an 8-inch mono coil, so it works well in very mineralized and low-mined soil, people use this device to find out where the gold is going in the mine, it It's easy to use, just plug it in and do the ground balance and it's ready to use. If you compare it with the GPX 5000, you can be sure that you will find more gold with the SDC 2300 than with the 5000. But the gold is so small. If you weigh it, it weighs less than the gold found with the GPX 5000.