Item Type: Digital Thickness Gauge Material: Plastic Battery Type: Button Battery (Inbuilt Battery Included) Battery Capacity: 210mAh Battery Voltage: 1.5V Package List 1 x Digital Thickness Gauge 1From 0 to 1in: This digital thickness gauge provides large measuring range from 0 to 25mm(1in), the resolution is 0.01mm(0.0005in). 2LCD Display: This electronic thickness meter adopts LCD digital display, which is more convenient to read the results. 3MM Inch Conversion: This inch measuring tool supports mm and inch conversion, 0 position at each position, incremental or absolute measurements. 4Durable Material: This digital thickness gauge is made of premium plastic material, which is strong and durable. 5Battery Powered: This electronic thickness gauge is powered by CR2032 button battery. Long press the button for 2 to 3 seconds for MM and Inch conversion.