SEN+-calibration technology with temperature compensation and a fast LED update within 5 seconds for stable ambient air analysis. Compact plug-and-play design that fits living rooms, renovated spaces, schools, or temporary workspaces with no installation required. Advanced multi-detection with precision monitoring of formaldehyde (HCHO) and TVOC levels using electrochemical and semiconductor sensors, with immediate data logging. Ideal for health-conscious families, new homeowners, parent-child care settings, and professional office air standards compliance. Use scenarios: - In a family home: place in the living room to monitor daily air quality during cooking or cleaning and receive real-time readings. - In classrooms or daycare centers: quick setup for ongoing air quality monitoring during school or care sessions. - In renovation sites or temporary workspaces: monitor pollutants during construction or temporary offices to ensure a safe environment.