Where did you get these tiny CO detectors?
I never heard of them.
.
The company that makes the one I was talking about in an earlier post is called KWJ Engineering out of California... they make a number of products but the small CO detector is called the Pocket CO. I am not aware of another company that makes a comparable product... at least not one that gives trace readings. If you do an Ixquick on them, you can find it real fast. However, if you have a problem, just send me a private message... I can even give you the name of the individual who I'm dealing with there.