Smart sensor AR932 film coating thickness gauge has 0~1800 μm measuring range, ±1.8%um to ±2um thickness accuracy, 0.1μm / 1μm resolution, backlight display, alarm buzzer, deviation measurement, data storage and recall, max and min measuring, AVG and DFR measuring, data analysis, 0℃ ~ 50℃ operating condition, 2 x 1.5V AAA battery, 75 gm weight, 119 x 50 x 30 mm dimensions.