Suitable for accurate measurement workshops, operating rooms, biological rooms, chip laboratories, food factories, battery research and development institutes in various scenarios 2.4-inch color screen and comfortable buttons Large color screen with backlight can enhance reading experience, the brightness can be easily adjusted The instrument is well-structured and has the characteristics of multi-purpose, high speed, convenient storage and use. The hand-held device has a compact body design, which is easy to carry and measure data at any time. It can measure the number of dust particles in six particle sizes at the same time. With comfortable operation buttons, easy to use, making work easier and more convenient, Manufacturer: XZXXZSZ