Description Colors: Red, Blue Specifications: Adults, Children Features 1. Accurately measures lung function, displays lung capacity data in real time, helping users scientifically assess respiratory health. 2. Portable design, small and lightweight, suitable for use in homes, hospitals, health check centers, and sports venues. 3. Simple and intuitive operation, one-button start testing, equipped with a clear digital display screen, easy for the elderly and children to use. 4. Uses a high-sensitivity for rapid response, ensuring the stability and repeatability of each measurement result. 5. Supports continuous testing for multiple users and can record data changes, facilitating long-term health monitoring and tracking of rehabilitation training effects. Comments: 1. Manual measurement tolerance is 2-5g. Please don't mind your replacement. 2. Due to differences between different monitors, the image may not reflect the actual color of the item. Thank you very much! 3. The SKU color is the color of the product packaging. Package includes: 1 * Lung Capacity Meter