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The Gravity CO2 Gas Sensor uses an MG-811 electrochemical sensing element to detect carbon dioxide concentration in the air. The output voltage decreases as CO2 concentration increases, and an onboard potentiometer lets you set a threshold for a digital on/off signal output.

An onboard heating circuit with internal voltage boosting to 6V ensures the sensor operates at its optimal temperature. The Gravity analog interface allows plug-and-play connection to compatible Arduino expansion shields. Note that this is an electrochemical sensor suited to qualitative CO2 analysis — for quantitative measurement, consider an infrared CO2 sensor.

Key Features

  • Sensor – MG-811 electrochemical CO2 sensing element
  • Operating Voltage – 5V
  • Interface – Gravity analog + one digital threshold output
  • Sensitivity – Highly sensitive to CO2, low sensitivity to alcohol and CO
  • Onboard Heating Circuit – Internal 6V boost for optimal sensor temperature
  • Signal Conditioning – Onboard amplification circuit for output signal
  • Low Dependency – Minimal humidity and temperature influence
  • Immersion Gold PCB – High-quality surface finish
  • Dimensions – 32 × 42mm

Ideal For

  • Air quality monitoring
  • Fermentation process control
  • Indoor CO2 concentration detection

Package Contents

  • 1× Gravity CO2 gas sensor

Resources

The Gravity: Arduino CO2 Gas Sensor appears in the following collections:

SKU DF-SEN0159
by DFRobot