Brand: BENETECH Model: GM200A coating thickness gauge Car Mode Resolution: 0.05mm/2mil User Mode Resolution: 0.01mm/1mil Measurement Error: 0.1mm Minimum base diameter of substrate: 50mm Minimum thickness of substrate: 0.5mm Temperature Range: 18-30 Operating Humidity Range:10~80%RH Power Supply: 2 x 1.5V AAA battery (without battery) Size: 105 x 63 x27mm Weight: 58g Target Measure: non-metallic coating thickness on the metal surface(such as paint, film,etc.) Measuring Range: 0-1.80mm/0-71.0mil nonmetal coating Note: Please allow 1-3mm error due to manual measurement, make sure you do not mind before you bid. Package information: Package Size: 199x150x72mm/ 7.8 x 6 x 2.8in Package Weight: 114g/4oz Gift box package Package List: 1 x Coating thickness gauge 6 x Standard pieces 1 x Instruction manual