PRODUCT FEATURES: 1. More user- friendly interface - The main unit is equipped with a 3.5-inch LCD display. The operation interface is simple and convenient. Real - time concentration data has been added. It adopts a theme - driven interface, which makes it easy to measure aerosols. The sampling speed of the vacuum pump is clearly displayed on the LCD, making it easily visible. For the selected alarm type and alarm point, there are indications on the menu below the LCD.At the top of the LCD, information such as connection status, alarm type, and report type is displayed. 2. Portable scanning probe - The scanning probe is connected via a circuit and serves as an extension of the main unit. All control states and selected icons of the main unit are displayed on the 2.8-inch LCD. This greatly improves the work efficiency of inspectors, enabling them to immediately detect and prompt for leaks during leak detection. 3. Easier traceability of test results - The DP-30 has three independent reporting functions: storage mode, continuous mode, and print mode(including filter position and other content, which can be output through a thermal printer for customers to keep). 4. Performance guarantee - The DP-30 uses a sampling pump imported from the UK and a light source imported from Japan. The core component sensor adopts top- notch high - precision processing technology in China(meeting the same standards as the technical requirements in the domestic aviation field). This instrument has been independently tested and verified and complies with electronic and safety standard requirements. 5. More complete and rapid after- sales service - As a domestic independently developed photometer, the DP-30 can provide after- sales service at a lower cost. It offers a 2- hour telephone response, free lifetime software upgrade for the main unit, and support for prototype machines. STANDARD CONFIGURATION: Scanning probe Printer Main unit Upstream sampling tube Signal wire