I have some experience in this area as my brother was seriously exposed to CO a few years ago. I feel that CO is such an underrated danger that this past year, I purchased 50 CO detectors that are about the size of a key chain. I gave them away to all my family members and employees. I picked the one I did because it gives readings in trace amounts as opposed to just giving an alarm. My employees could be exposed to CO in the factories where they do work or even in hotel rooms... yes, this past year there has been quite a few incidents of high CO levels in hotel rooms due to pool heaters etc not working properly.
Where did you get these tiny CO detectors?
I never heard of them.
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