Coating Thickness Gauge. Dual technology provides automatic recognition for ferrous (F) and non-ferrous (NF) substrates. Magnetic induction for ferrous substrates. Eddy current measurement for non-ferrous substrates. One of two point calibration. User-settable high/low alA RMS. Minimum/maximum/average. Memory stores 400 readings. Includes two AAA batteries, USB cable, software, calibration iron, calibration aluminum, precision standards and carrying case. Measuring Range: 0 to 1250 micrometer, 0 to 49.21mils. Accuracy: 0 - 850 micrometer: +/-3 percent +1 micrometer, 850 - 1250 micrometer: +/-5 percent ;0 - 33.46mils: +/-3 percent +0.039mils, 33.46 - 49.21mils: +/-5 percent. Resolution: 0 - 50micrometer: 0.1micrometer, 50 - 850micrometer: 1micrometer, 850 - 1250micrometer: 0.01mm; 0 - 1.968mils: 0.001mils, 1.968 - 33.46mils: 0.01mils, 33.46 - 49.21mils: 0.1mils. Minimum curvature radius: F: 1.5mm; NF: 3mm. Minimum area diameter: F: 7mm; NF: 5mm. Minimum substrate thickness: F: 0.5mm; NF: 0.3mm. Power supply: 2 x 1.5V "AA" batteries. Measures 50mm width by 110mm height by 23mm depth.