Measuring potato "launcher" combustion chamber pressure

[MorkBlart909]

I am building a potato "launcher" with my kids and (purely for fun) would love to figure out a way to measure the pressure that builds in the combustion chamber during use. I am most interested in the max pressure, but ideally would be able to log and visualize the full process (ambient, spike, release). I am thinking of something like a sensor board that would sit on the outside of the device with a lead/tube going into the combustion chamber. I have a few Arduinos and Pis around I could use for supplying voltage and reading output.

This ported sensor (https://www.adafruit.com/product/3965) seems close to the right idea, but I think the max pressure (25psi) is too low. I probably need closer to 100 psi. Ported or not, most air pressure sensors I am finding seem to be oriented to ambient and near ambient pressure ranges.

Any ideas? Maybe there is a sensor out there rugged enough to sit inside the chamber? Thanks.

[adafruit_support_bill]

100PSI rated sensors designed for automotive oil pressure are available from many sources online. They typically have a 0-5v analog output signal and a 1/8"NPT threaded port.

[millercommamatt]

If this is a combustion based "device" I'm betting 100 PSI is too low.

[MorkBlart909]

Thank you @adafruit_support_bill!

The insight to look in the automotive space yielded a ton of options, just as you alluded to.

@millercommamatt thanks for your idea. My intuition would have been higher as well, but I picked 100 psi based on this fascinating paper https://apps.dtic.mil/sti/pdfs/AD1015616.pdf where (if I did the conversion right) the max pressure observed was around 87psi. That was with acetylene! With the other fuels the pressures were much lower.
In any case, I wound up ordering a sensor which can go higher in case my circumstances are different from theirs. Thanks for the contribution!