The instrument should be calibrated to ensure higher accuracy. Multifunctional Design: Equipped with battery power indicating and 3 minutes no operation automatic shutoff function, and support turn on and off the backlight. Statistical Display: With statistical display function, you can see the average, minimum, maximum, number clearly. This instrument supports up to 50 data to carry on the statistics, when reaches 50, the latest data will replace the oldest data, the statistical value will be updated automatically. Standard Aluminum Film: Comes with aluminum sheet and 6pcs calibration films, with different thickness of 0.05mm, 0.25mm, 0.10mm, 0.50mm, 1.00mm and 2.00mm to meet your demands. Measurement Object: The tester is used for non-destructive measurement of coating and paint thickness, fast and accurate. It is mainly used to measure the thickness of non-conductive coating on metal surface, as well as the thickness of non-ferromagnetic coating on ferromagnetic metal(such as iron, nickel, cobalt, etc.), such as paint thickness on automobile surface, coating thickness of metal parts and so on. Wide Applications: It is widely used in manufacturing, metal processing industry, industry, commercial inspection, etc. It can also work stably in the laboratory, workshop and other fields. Specifications: Name: Thickness Gauge; Material: ABS; Color as shown; Display: LCD backlight display; Battery: 2*1.5V AAA battery (not included); Measurement ranges: 0-2000UM; Measurement accuracy: (3% +1UM); Operating temperature: -10 to 50; Item size: 85*40*30mm/3.35*1.57*1.18in; Package size: 90*55*42mm/3.54*2.17*1.65in; Package weight: 82g/2.89ounce. Packing List: 1*Thickness Gauge, 6*Calibration Film, 1*Base Sheet, 1*Manual