1、Convenience: It is a highly accurate and compact instrument used to quickly and accurately measure thickness of coating or plating on all kinds of metal surfaces. Can be automatically calculated by only placing it on the surface under test. 2、Accuracy: Zero calibration to improve test accuracy, it is recommended to calibrate the instrument to zero. Press and hold until you hear a dripping sound and the zero calibration on the screen starts flashing. 3、Easy To Operate: The probe is placed vertically and rapidly on the surface of the uncoated substrate to be tested. After hearing the dripping sound, the screen displays O, and the probe can be raised at least 2cm away from the substrate, that is, back to zero once. 4、Powerful: It measures paint thickness, but more importantly, this paint coating thickness tester can spot problems you might not be able to see with the naked eye. 5、Widely Used: This device can be used for determining the average thickness of paint on the car body, used in manufacturing, metal processing, chemical industry, commodity inspection, laboratories, workshops. 1 x Coating Thickness Gauge 7 x Calibration Plate 1 x English Manual  Item Type: Coating Thickness Gauge Material: ABSWeight: Approx. 107g / 3.8ozProduct Size: Approx. 12.2x5x 2.2cm / 4.8x 2.0x 0.9inMeasuring Range: 0-2000UMMeasurement Accuracy: ± (3%+1UM)Battery Type: 2 x AAA (Shipped Without Battery)