The Magna Mike® 8600 is a portable thickness gauge that uses a simple magnetic method to make reliable and repeatable measurements on nonferrous materials. The operation of the Magna Mike is very simple. Measurements are made when its magnetic probe is held or scanned on one side of the test material and a small target ball (or disk or wire) is placed on the opposite side or dropped inside a container. The probe's Hall Effect sensor measures the distance between the probe tip and the target ball. The measurements are instantly displayed on the large color thickness display as an easy-to-read digital thickness reading.