CEM DT-156 Paint Coating Thickness Gauge Meter Tester Auto F/NF Probe with V-groove 0~1250um/0~49.2mils 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