Features: 1.The coating thickness gauge has the characteristics of small measurement error, high reliability, good stability, and operation substitution. It is an indispensable testing instrument for controlling and ensuring product quality. 2.Small-caliber probe, easy to identify the type of substrate, you can understand the paint condition with just one click 3.The product is durable and very reliable 4.Live voice broadcast, no need to be distracted to watch the data to improve work efficiency and make you more focused 5.Long press the set / cal key to enter the calibration mode, you can calibrate the data of the current group Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Description: Product name: HW-300S coating thickness gauge Material: ABS Resolution: 0.01mm/1mil Measuring range: 0-2000UM Measurement accuracy: (3%+1UM) Power supply: 2 1.5V AAA batteries (batteries not included) Operating temperature: -10 degrees Celsius and 50 degrees Celsius includes: 1 x Digital Coating Thickness Gauge