MiCS-6814

MiCS-6814 can detect many unhealthful gases, and three gases can be measured simultaneously due to its multi channels, so it can help you to monitor the concentration which more than one gas.


 * https://www.pewatron.com/fr/produits/gas/produit/mics-6814/
 * https://www.pewatron.com/fileadmin/products/datasheets/188/MiCS-6814_1620-21530-0008-E-0915.pdf
 * Arduino Grove http://wiki.seeedstudio.com/Grove-Multichannel_Gas_Sensor/