1Made of high quality material, durable, practical, corrosion resistant, high temperature resistant 2Coatings on any metal, including steel and aluminum, can be measured 3Two colors are displayed: Black letter on white background and Green letter on black background 4Material can be automatically identified and measured 5Automatic ON/OFF switching, Mils/Microns unit optionalFeatures:Made of high quality material, durable, practical, corrosion resistant, high temperature resistant. Coatings on any metal, including steel and aluminum, can be measured. Two colors are displayed: Black letter on white background and Green letter on black background. Material can be automatically identified and measured. Automatic ON/OFF switching, Mils/Microns unit optional. ZERO sets the function of non-standard surface. When there is no zero reference, reset to factory settings. With LCD color flip LCD display, it is more convenient to use. The maximum, minimum and average values can be displayed at the same time. Pocket size, small size, light weight, can be operated by one hand. This product provides a set of plastic test gaskets. Specifications:Condition: 100% Brand NewMaterial: PlasticModel: CM8802FNMeasuring range: 0~1250(um), 0-50 mil(mm)Power supply voltage: 2 * 1.5v AAA batteries (Battery not included)Resolution: 1 um, 0.1 milMeasurement accuracy: 3%Rang: 0-1250um, 0-50milsAccuracy: + - (2 + 3%H), H is the standard thicknessWorking temperature: -10 -60 Storage temperature: 0-40 Package list:1 *Coating Thickness Gauge (Battery not included)2 * Substrate Blocks (1 * Steel, 1 * Aluminium)4 * Calibration Foil1 * English Manual