Multiple output options: The MG811 carbon dioxide sensor module provides both analog and level outputs, offering flexibility for integration with various microcontroller systems and measurement setups. Accurate measurements: Equipped with temperature compensation, the module enhances measurement accuracy under diverse environmental conditions, delivering dependable results. Easy microcontroller integration: The active low signal simplifies connection to microcontrollers, making the setup straightforward and efficient for users of all skill levels. Flexible interface range: Analog output 02V enables compatibility with devices that expect lowvoltage signals and supports easy mapping to ADC inputs. Use scenario: Indoor air quality monitoring for home or office automation. Connect to a microcontroller to trigger ventilation or alerts when CO2 levels rise beyond a set threshold. Use scenario: Greenhouse or plant growth environments. Monitor CO2 and interface with environmental control systems to optimize enrichment and ventilation. Use scenario: Classrooms, laboratories, or other public spaces. Integrate with HVAC or alarms to monitor CO2 and support occupant safety and comfort.