9in1 multifunctional air quality detector with realtime monitoring and builtin data management. It not only tracks air quality indicators as they change, but also stores data, and supports export and download so you can review air conditions over time. Key indicators measured CO, CO2, PM2.5, formaldehyde (HCHO), TVOC, temperature, and humidity Provides a comprehensive and authentic view of indoor air quality Data storage and historical reference Builtin storage continuously records air quality data Preserves historical information for longterm reference and analysis Benefits and use cases Realtime insight helps you respond quickly to poor air quality and adjust ventilation or filtration as needed Longterm data supports trend analysis, reporting, and compliance with safety or health guidelines Allinone device reduces the need for multiple monitors and simplifies air quality management Practical scenarios Home environment: monitor daily air quality, verify HVAC performance, and maintain a healthier living space Office or classroom: ensure a comfortable and safe environment for occupants by tracking key pollutants and comfort parameters Renovation or small workshop: detect potentially harmful VOCs and formaldehyde levels to protect occupants during and after projects Outlook and use Provides a reliable picture of ambient air quality by combining realtime monitoring with continuous data logging Data export and download capabilities enable easy sharing with professionals or for archival records Designed to deliver accurate readings for the key indicators it measures, supporting informed decisions about ventilation and air management