Do carbon monoxide detectors use radiation?

I need to do a science project for my school, and I have a Geiger Counter so I figured I could use that, I'm aware that smoke detectors use radiation to detect smoke, but I don't have a spare smoke detector to take apart to get the radioactive material, I do have a spare carbon monoxide detector but I'm... show more I need to do a science project for my school, and I have a Geiger Counter so I figured I could use that, I'm aware that smoke detectors use radiation to detect smoke, but I don't have a spare smoke detector to take apart to get the radioactive material, I do have a spare carbon monoxide detector but I'm not sure if that also uses radiation?
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