Need advice to build portable multi gas detector with LED display

[RAJ MOHAR]

 

Hello. I am planning to build portable multi gas detector with LED display for my school project. I want to have 3 types of gas sensor which are,

1.       harmful gas such as CO, 

2.      Oxygen content

3.      Flammable gas such as propane and butane.

I have a problem to understand what I should do. Would you please recommend to me what should I do? What are the components should I prepare for the circuit. Can I have 3 types of sensor in one or I have to do it in separate part. For the power supply I am thinking to use 12 volt motorcycle battery. What are the costs for all the parts I need to buy? I am really appreciated if you can help me. Thank you very much. 

[AJISH ALFRED]

Hi Raj Mohar,

I don’t think a single gas sensor can collect all those data. Try to find out the sensor which match your requirements with the help of google.

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