So, I need to measure the concentration of Benzene in air. I have an Arduino Zero to read analog or digital value.
I found out the sensor MQ-135. The problem is that, if I'm right, the sensor reacts also to different gasses as NH3 and alcohol.
Is the sensor reliable for such a measure or do I need to look somewhere else? Adapting sensors to the Arduino analog input is not a problem nor power supply of the sensor. My project measure temperature and humidity so, I can also adapt the measure to these two factors.