Feature: 1. INTELLIGENT: Powerful intelligent chip, more accurate measurement, upgraded data processing algorithm, accurate detection of blood oxygen saturation, HD display panel, high brightness, wide viewing angle. 2. SILICONE SHADING: Silicone shading layer structure design with more delicate shading design, good signal transmission quality, more sensitive measurement, and effective resistance to light interference. 3. PAINLESS: Painless blood oxygen measurement anytime and anywhere, eliminating the pain and trouble caused by traditional blood gas analysis invasive, not limited by time and place, easy to measure blood oxygen. 4. PORTABLE: Small and portable, one key operation, 8 seconds to display the test results, but also equipped with a thoughtful lanyard design, lightweight and easy to carry. 5. GRAVITY SENSING: Data can be displayed in all four directions, the screen display automatically switches with the change of direction, easy to read. Specification: Item Type: Blood oxygen meter. Package List: 1 x Blood Oxygen Meter