ELECFREAKS Octopus CO2 Gas Sensor
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The ELECFREAKS Octopus CO₂ Gas Sensor (MG811) introduces students to gas sensing and environmental monitoring.
Its output voltage decreases as carbon dioxide concentration increases. Learners can use a compatible controller to read this signal and explore how sensor data can be displayed or used to trigger programmed responses.
The module features an onboard signal amplification circuit and a three-pin connection for ground, power and signal. An analogue sensor cable is included.
- Product code: EF04100
- Working voltage: DC 3.7–5V
- Dimensions: 31 × 48 mm
- Net weight: 9.6 g
Please note that this sensor requires a breakout board for operation, and it is typically paired with the Elecfreaks IOT:BIT board by the manufacturer.
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