ICON DATA real time 3D metal detector data logger purpose is to create images of targets in 2D & 3D viewing ability. ICON DATA metal detector data logger can be used with any metal detector that offers “non motion” audio mode. ( A true non motion metal detector does not need movement of the coil to generate audio signal. Also, the audio signal will not fade out, but rather get stronger as it gets closer to the target, and will continue to sound as long as the coil remains over the target.