Features: 1. The coating thickness gauge has the characteristics of small measurement error, high reliability, good stability, and easy operation. It is an essential testing instrument for controlling and ensuring product quality. 2. Small-caliber probe, easy to identify the type of substrate; you can check the coating condition with just one click. 3. The product is durable and highly reliable. 4. Live voice broadcast function allows hands-free operation, improving work efficiency and focus. 5. Long press the set/cal key to enter calibration mode and calibrate the current data group. Notice: Actual color may vary slightly from the image due to different monitor settings and lighting conditions. Please allow 1-3 cm deviation due to manual measurement. Product Name: HW-300S Coating Thickness Gauge Material: ABS Resolution: 0.01mm/1mil Measuring Range: 0-2000UM Measurement Accuracy: (3%+1UM) Power Supply: 2 x 1.5V AAA batteries (batteries not included) Operating Temperature: -10°C to 50°C Package Includes: 1 x Digital Coating Thickness Gauge