Multi-function Air Monitor: This 6-in-1 detector measures carbon dioxide, PM5, HCHO, TVOC, temperature, and ventilation, making it an essential tool for maintaining a healthy indoor environment. High-precision sensors: Equipped with advanced sensors, this device ensures accurate and stable readings, providing you with reliable data every time you check your air quality. Intuitive LED display: The vibrant four-color LED display visually classifies air quality levels, allowing you to quickly assess conditions in your space at a glance. Real-time alerts: Stay informed with timely alerts that notify you of fluctuations in air quality through visible color changes, allowing you to take proactive steps for a healthier atmosphere. Widely uses: For homes, schools, offices, hospitals, and moreover, this air quality monitor is designed to effectively track air conditions in various environments. Note: The data are all measured manually, please allow 1-3cm error due to different light and display, there may be some color differences, please refer to the actual item received.