Hi there,
I'm an electronic engineer,I can design this circuit perfectly.
I'm an expert in Eagle CAD,EasyEDA and Altium Designer.
Can you please send me a message,So we can discuss more about the project?
I can come up with an equation to convert the voltage to PPM Value,So you can measure the gas.
Design is a huge part of my life and I work hard to produce
the highest quality, effective, innovative, timeless, designs
that my clients will love and I would love to work with you!! :)
Thank you
Achini