MG-811 GAS CO2 CARBON DIOXIDE SENSOR

Overview

Monitor carbon dioxide levels with precision using the MG-811 CO2 Gas Sensor Module from MOKWN. This high-sensitivity sensor is engineered to detect CO2 concentrations in ambient air, making it an essential component for air quality monitoring systems, greenhouse automation, HVAC control, and environmental science projects. The MG-811 utilizes a solid electrolyte sensor that provides stable and reliable readings, ensuring your projects are both accurate and efficient.

Key Features

• High Sensitivity & Selectivity: Specifically designed to detect CO2 with minimal cross-interference from other gases.
• Stable Performance: Solid electrolyte sensing element ensures long-term stability and repeatability.
• Simple Analog Output: Easy-to-read analog voltage output simplifies integration with microcontrollers like Arduino, ESP32, and Raspberry Pi.
• Compact Design: Small footprint (32mm x 22mm x 27mm) fits neatly into any project enclosure.
• Low Power Consumption: Efficient operation with a DC6V supply, ideal for battery-powered applications.
• Built-in Signal Conditioning: Onboard circuitry amplifies and conditions the sensor signal for direct microcontroller connection.

Technical Specifications

• Model: MG-811
• Detection Gas: Carbon Dioxide (CO2)
• Detection Range: 350 - 10000 ppm (typical)
• Sensor Work Voltage: DC 6V
• Size: 32mm x 22mm x 27mm
• Output: Analog voltage (proportional to CO2 concentration)
• Interface: 4-pin header (VCC, GND, AO, DO)

Applications & Use Cases

• Indoor Air Quality Monitoring: Perfect for measuring CO2 levels in homes, offices, and classrooms to ensure healthy ventilation.
• Greenhouse & Agriculture: Monitor CO2 levels in controlled environments to optimize plant growth.
• HVAC Systems: Integrate into smart ventilation systems to automatically adjust airflow based on CO2 concentration.
• Environmental Science Projects: Ideal for educational experiments and research on carbon emissions.
• Smart Home Automation: Build a CO2-triggered air purifier or alert system for better living conditions.

What's Included

• 1x MG-811 CO2 Gas Sensor Module
• 1x Sensor probe (detection head)
• 1x Connecting cable
• 1x Pin header (for wiring)

Compatibility

• Works with all major microcontrollers including Arduino, ESP32, ESP8266, Raspberry Pi, and STM32.
• Compatible with MOKWN's wide range of development boards and accessories.
• Requires an analog input pin on your microcontroller (e.g., A0 on Arduino).

MOKWN Recommendation

At MOKWN, we recommend the MG-811 for makers and professionals who need reliable CO2 monitoring. For a complete environmental monitoring setup, pair it with our DHT22 temperature/humidity sensor and an ESP32 board to create a powerful IoT air quality station. Need help with calibration or integration? Our team in Egypt is ready to assist you with any technical questions. Order now and elevate your projects with accurate CO2 sensing!

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Note: The MG-811 requires a warm-up time of a few minutes after power-on for accurate readings. For best results, calibrate the sensor using known CO2 concentrations.