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 click3.The product is durable and very reliable4.Live voice broadcast, no need to be distracted to watch the data to improve work efficiency and make you more focused5.Long press the set / cal key to enter the calibration mode, you can calibrate the data of the current groupNotice:Actual color may be slightly different from the image due to different monitor and light effectPlease allow 1-3cm deviation due to manual measurementDescription:Product name: HW-300S coating thickness gaugeMaterial: ABSResolution: 0.01mm/1milMeasuring range: 0-2000UMMeasurement accuracy: (3%+1UM)Power supply: 2 1.5V AAA batteries (batteries not included)Operating temperature: -10 degrees Celsius and 50 degrees Celsius