Do not stop your gold detection hobby at ground detection as you can also detect gold within walls. Special Gold detector for walls help you to detect and pin point gold within. These machines have the ability to detect the presence of gold beneath the concrete layer a wall.
Gold detecting machines for walls are built especially to detect gold that could be under concrete. They can pick signals about the presence of gold in a wall from a small or large distance depending upon the configuration of the gold detecting machine you buy. But if you are a beginner in gold detection then you would want to try our pocket friendly starter gold detectors before you are more confident.