What does it mean when a first alert carbon monoxide detector starts blinking a green light?

Wesley

Answer
From what I can tell, the alarm does this any time it starts back up due to a power surge, power outage, etc... Here is some info from First Alert's website;

http://www.firstalert.com/faqs/co-alarm/on-my-first-alert-plug-in-carbon-monoxide-detector-why-is-the-green-power-light-flashing

Here is the FAQ from their website regarding the red light flashing;

http://www.firstalert.com/faqs/co-alarm/why-does-the-red-light-flash-on-my-carbon-monoxide-alarm-do-i-have-co

And lastly, here's how you can replace your owner's manual, which will probably have more info that what I was able to find online;

http://www.firstalert.com/faqs/smoke-alarms/i-lost-my-first-alert-smoke-alarm-owners-manual-how-can-i-get-a-new-one

Lastly, you can punch in your alarm's model number and do a google search, and should be able to find an owner's manual online. Example: First Alert <model number> Carbon Monoxide Detector Manual. Google that, and you should be set.

Good luck!

I have a nighthawk carbon monoxide detector, I have no idea what those digital numbers are for?

dreamer236

I was cooking in the kitchen today and I notice the number got up to 9 but the alarm did not go off. I just want to know about these numbers, I have no idea how far the numbers go. I thank you for your help.

Answer
If you can't find the manual, try looking up your model on the internet. The numbers *may* indicate parts per million of CO detected. It takes 1000ppm to cause unconsciousness in an hour, so 9ppm isn't good, but it is considered "normal" background CO.

Take a look at http://www.nfpa.org/itemDetail.asp?categoryID=280&itemID=18270&URL=Research+&+Reports/Fact+sheets/Home+safety/Carbon+monoxide+poisoning&cookie%5Ftest=1 for additional information.

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