CO Alarm

If this is for your robot, then experimenting is fun.

haven't received the CO detector yet since it is coming from China

Gives me the willies.

If this is for your house, and you want to keep your family safe, you're better off going to Walmart or
Home Depot or the local hardware store, and buying an approved CO detector. I certainly wouldn't buy
something like this cut-rate from China for use in the baby's bedroom.