MG811 Air Carbon Dioxide (CO2) Sensor Module
Description:
MG811 Air Carbon Dioxide (CO2) Sensor Module is a highly sensitive and efficient gas detection module specifically designed for measuring CO2 concentration levels in the air. This module uses the MG811 gas sensor, which is renowned for its stability, long life, and high sensitivity to carbon dioxide (CO2), making it suitable for a wide range of environmental monitoring and air quality control applications.MG811 sensor works on the principle of electrochemical detection and has a built-in heating element to maintain stable working conditions. It outputs an analog voltage signal that varies with the CO2 concentration in the surrounding air. The higher the concentration of CO2, the higher the output voltage.
Features:
1. High sensitivity to Carbon Dioxide (CO2)
2. Fast response and recovery time
3. Long life and stable performance
4. Dual Output: Analog Voltage Output & Digital Threshold Output
5. Onboard signal conditioning circuit
6. Built-in heating element for stable operation
7. Adjustable sensitivity via onboard potentiometer
8. Easy to interface with microcontrollers (Arduino, Raspberry Pi, ESP32)
9. Ideal for indoor air quality monitoring systems
Specifications:
| Sensor Type | MG811 CO2 Gas Sensor |
| Target Gas | Carbon Dioxide (CO2) |
| Detection Range | 350 ppm to 10,000 ppm |
| Operating Voltage (Heating) | 6V DC |
| Operating Voltage (Signal Circuit) | 5V DC |
| Preheat Time | ~24 hours for accurate readings |
| Response Time | ≤ 120 seconds |
| Operating Temperature | -20°C to +50°C |
| Operating Humidity | 0% to 95% RH (non-condensing) |
| Module Size | 40mm x 20mm x 10mm |
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