The Grove - CO2 & Temperature & Humidity Sensor (SCD30) is a high precision carbon dioxide sensor, which is based on Sensirion SCD30. The measuring range of this sensor is 0 ppm-40'000 ppm, and the measurement accuracy can reach to ±(30 ppm + 3%) between 400ppm to 10'000ppm.

  

 

In addition to the Non-Dispersive Infrared(NDIR) measurement technology for CO2 detection, the SCD30 integrates Sensirion humidity and temperature sensors on the same sensor module.     

 

You can see that there is a monkey face graphic on the module, actually, this is a carbon dioxide molecular model. As you can see, the 4 valence electrons on each oxygen atom and also the covalent bonds between the carbon and oxygen atoms are clearly shown. 

 

 

 

Here is a lewis structure of the CO2 molecule: 

Tip

We've released the Seeed Gas Sensor Selection Guide, it will help you choose the gas sensor that best suits your needs.

Features

• NDIR CO2 sensor technology
• Integrated temperature and humidity sensor
• Best performance-to-price ratio
• Dual-channel detection for superior stability
• Digital interface I2C

Application Ideas

• Air Purifier
• Environmental Monitoring
• Plant Environmental Monitoring

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