Dear Sir,
I'm an undergraduate. I'm doing a project regarding Vehicle Exhaust Gas Analyser. Can I use following type of sensors to detect exhaust gas levels ? CO>> http://www.ebay.com/itm/DC-3-5V-MQ-9-Combustible-Gas-Carbon-Monoxide-CO-Sensor-Module-MQ9-Detector-/300847030943?pt=LH_DefaultDomain_0&hash=item460be1629f CO2>> http://www.ebay.com/itm/Carbon-dioxide-sensor-Gas-sensor-module-/170969527732?pt=LH_DefaultDomain_0&hash=item27ce93f5b4 HC>> http://www.ebay.com/itm/MQ-5-Gas-Sensor-module-for-Methane-Butane-and-Propane-Arduino-Compatible-/130711771878?pt=LH_DefaultDomain_0&hash=item1e6f075ae6 I must be thankful to you if u will reply soon. Thank You.
