Fangrui Product Details Advanced Air Quality Monitoring: Provide Your Environment With The Ability To Accurately Assess The Air Quality With Our State-of-the-art Sensor Module. The Device Supports Detailed Detection Of Tvoc, Ch2o And Co2 Levels, Which Are Critical To Health And Safety. Seamless Integration: The Module Features Uart Communication To Easy Integration With Existing Systems, Making It Ideal For Both Hobbyists And Professional Settings. Measures Tvoc (total Volatile Organic Compounds), Co2 (carbon Dioxide) And Ch2o (formaldehyde) In The Environment. Supports Uart Communication, High Sensitivity, Low Power Consumption, , Compact Size. Versatile Applications: Our Sensor Modules Are Ideal For Indoor Air Quality Monitoring In Homes, Offices And Industrial Environments, Helping To Maintain Optimal Air Conditions And Protect . Working Voltage: 5v Logic Voltage: 3.3v Communication Interface: Uart Baud Rate: 115200bps Response Time: Less Than 20s Startup Time: Less Than 120s Detection Concentration Range: 0.1ppm-100ppm Ref