The MQ135 is a sensor that can detect air pollutants like smoke, alcohol, and CO2
Ideal for use in office or factory, simply drive and monitoring circuit.
Can detect smoke, alcohol, perfumes, benzene (C6H6), Carbon dioxide (CO2), ammonia (NH3), Nitrogen oxides (NOx), and other pollutants.
Good sensitivity and selectivity to CO2, Benzene, Nox, NH3 and other pollutant gases
 
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