Description: The thickness gauge body is made from high quality engineering plastics, light weight and durable. Thickness gauge is designed with a large digital LCD display for convenient reading of data. reset function at any position, metric and system switch, manual power on/off and automatic power off. Suitable for measuring situations which require especially insulation and magnetic or scratch prevention. Can be used to measure thickness of paper, PU leather, metal sheet, jewelry, battery, etc. Specification: Material: Plastic Color: Blue Measurement Range: 0-12.7mm / 0.5" Resolution: 0.01mm, 0.0005" Accuracy: ±0.1mm, 0.005" Operating Temperature: 0~40℃ Storage Temperature: -20~70℃ Relative Humidity: ≤80% Power: LR44/SR44 1.5V button battery (Included) Size: Approx. 9.6x 5.7x 2.3cm/ 3.7x 2.2x 0.9inch Package Includes: 1pc Thickness Gauge : Press the on/off button to power on. Check whether it displays 0.00, if not, reset it by pressing the zero button. Press the pressing and put the workpiece in then release the . Read the measuring result, and measure a few more times then calculate the average of results to get a more accurate one.