Specifications:Measuring Range: 0.0mm to 2.0mm / 0mil to 80milAccuracy: 2%rdg 0.1mm / 2%rdg 4milNote: Accuracy at the operating temperature of 23Resolution: 0.1mm/1milPower Supply: 1 x 3V button cell, CR2032 or equivalentOperating Environment: Temperature: 0-40Relative Humidity: < 80%Temperature Coefficient: 0.05x(2%rdg0.01mm,or 2%rdg4mil)/ (< 18 or >28)Storage Environment: Temperature:-10 to 50Relative Humidity: < 80%Size:6.8 x 3.8 x 2cm Description:This tester is designed to not-destructively measure the thickness of non-magnetic coatingson iron, steel or aluminum, including paint, enamel, plastic, epoxy, etc.It is featured with min size and some convenient settings.Power by any 3V button cell, it is easy to change the battery.Features:High Accuracy: with measuring range 0.0-2.0mm and 2%rdg0.1mmVarious Power Supply: 1piece 3V button cell, CR2032 or equivalent.Convenient Settings: automatic calibration and data hold, selectable unit mm/mil.Mini size: with LCD display, easy to carry and have clear readings.Mainly used to non-destructively measure the paint thickness of car.