Item Type: Thickness Gauge Material: ABS Batteries: AAA Batteries x 2 (Shipped Without Batteries) Battery Power Indication: Yes Automatic Shutdown Function: Yes Measurement Range: 0-2000um Measurement Accuracy: ± (3% + 1um) Minimum Convex Arc: Approx. 5mm / 0.2in Minimum Concave Arc: Approx. 25mm / 1in Minimum Measuring Area: Approx. 20mm / 0.8in Maximum Measurement Speed: 2 Readings Per Second For FE or NFE 1、Measurement Content: Coating thickness gauge for measuring the thickness of metal plating and coatings, such as paint on steel, paint on aluminum or copper and anodic oxide coatings. Automatically detects the properties of the substrate. 2、Easy to Read Display: Thickness gauge meter has a large display showing metal type, and working mode, quantity, cell status and readings in μm or mils. 3、Checking Thickness: When purchasing a car at a dealership, thickness gauge check the car paint to ensure that the paint thickness is approximately the same on each panel. 4、Light Weight: The overall weight of our small coating thickness gauge is light and very portable, you can always take it with you. 5、Wide Range of Uses: Coating thickness meter is widely used in manufacturing, metal processing industry, chemical industry, etc. It can also work stably in laboratory, workshop and outdoor. Bathroom accessories, furniture, cabinets and lockers, computers, appliances and toy. 1 x Coating Thickness Meter 1 x Substrate(Iron Or Aluminum) 6 x Calibration Sheet 1 x Instruction Book