Quick responding, capable of measuring ferrous and non-ferrous substrates. REED CM-8822 Offers This coating thickness gauge includes ferrous and non-ferrous probes and features a zero button for quick adjustment in the field. The CM-8822 has a easy-to-read LCD display and basic accuracy of 3%. Features Measures the thickness of non-magnetic coatings on magnetic or non-magnetic metal substrates User selectable µm/mils Probe allows for readings in tight spaces Easy-to-read LCD display Automatic probe recognition Zero adjustment button Automatic calibration Low battery indicator Included Coating Thickness Gauge Ferrous Probe Non-Ferrous Probe Calibration Standards Battery Hard Carrying Case