REED Instruments ST-156 Coating Thickness Gauge, 0-1250&micro;m/0-50mils Automatic recognition for ferrous and non-ferrous substrates Easy-to-read backlit LCD display and USB Interface One or two point calibration, Zero adjustment button Memory stores up to 400 readings, Min/Max and Average functions Includes calibration iron/aluminum, reference films, USB cable, software, batteries and carrying case