Model CO615 - 12/14/2012
Reviewer: David Kuiawa
It is a good thing First alert has a 7 year mfg. warantee, because the store in Palatine, Il. only has a 30 day RMA product policy & Christmas is a busy season, so Check out your product carefully. Ordered it online because of Consumer Reports recommendation. Walmart sells First alert, maybe not the same model. The test button stuck - a mechanical malfunction.. These are massed produced, & I doubt if they have humans pushing the test button to check it out. When I called the store, the clerk sounded like she was doing me a favor by answering the phone. I guess after 40 days, the customer isnt always right.

Reliable safety! - 08/13/2012
Reviewer: Cheryl Malone
Attractive on the wall, easy to read display in the middle of the night. Battery back up lets me sleep knowing my family is safe even if the power goes out without my knowledge.

- 08/09/2012
Reviewer: Clifford Brosnan
It works well.

Works great. No false alarms. Need freshness date on pkg. - 03/14/2012
Reviewer: Nancy Tognan
I think the First Alert Co615 carbon monoxide alarm is an excellent product. I would have given it 5 stars instead of 4, except for the fresh-dating issue. Here are the good features of the product. - It is powered by plugging it in, with a battery backup. So, it does not use the batteries much, but it will still operate if there is a power failure. And the batteries are two AAs, so they are not expensive. - No false alarms. I dont want to lose a nights sleep for no reason! - The batteries are not depleted as long as the unit has AC power. In two years, there is no noticeable drop in battery voltage. Therefore, I am not awakened by low-battery warnings, like the purchasers of some other brands. - Digital readout. You can press the button and see the reading at any time. Mine have always been zero if I saw anything else, I would look for furnace, water heater, stove, or other appliance malfunctions. Some people have complained that it does not display the reading constantly, without pressing a button I suspect this would drain the batteries more quickly in case of a power outage. - Detachable plug with extension cord. You can plug in the unit at ground level and install it much higher, so you can read it easily, and also have the unit sense readings higher off the ground. Carbon monoxide is just slightly lighter than air. - The instructions are printed small. But they are available as a PDF on the First Alert web site, easily readable. I bought two of these carbon monoxide detectors from Amazon two years ago, in April, 2010, and I wanted to buy a third this year. I recently attended a New York City Fire Department presentation, which advised that CO detectors should be replaced no later than 7 years after their date of manufacture. Unfortunately, the manufacture date cannot be viewed without opening the package, so no one can tell how fresh the unit is. Is the date so important? If so, it should be visible on the outside of the package, and online sites should advertise the date. To avoid purchasing very old stock, I bought the third unit directly from First Alert, and I received a product only one year old. I wish there were some safe way of testing a carbon monoxide alarm, aside from pushing the test button - something equivalent to lighting a candle under a smoke detector. I am surprised that model Co615 is not available in any brick-and-mortar store: not Home Depot no First Alert CO detectors at all, nor Lowes, nor Sears. I would recommend ordering it directly from First Alert.

- 03/07/2012
Reviewer: Joseph Putze
suggestion--Increase the size of the lettering on the test-move to fresh air and peak level buttons so that us old folks can read them. Joe Putze

Great Product - 03/05/2012
Reviewer: Ross Dailey
Simple and easy life saver

Only Time Will Tell - 02/20/2012
Reviewer: John Tomaszek
Bought 2 units to replace 10 year old monitors. These are much smaller than the old competitors and they dont fall out of the socket if you plug them directly into the wall without using the extension. Do they work? My old ones still say yes when I press the test button. These do the same thing. Since I never had one alarm, I take it on faith that they do. Unlike a smoke alarm that may go off when you cook. Why a 5? Why not? Nothing to complain about.

- 02/03/2012
Reviewer: Mary Wesolowski
Very pleased with unit. Fast delivery also. Will buy additional products from First Alert.

- 02/01/2012
Reviewer: Frank Hartmann
Had product before and I was well satisfied.

- 12/05/2011
Reviewer: courtney neff
Good instructions and simple to install. Great combination of house electrical system with battery back-up.

- 10/03/2011
Reviewer: Roger Schirizzo
The delovery was great and the idea of having a 6 foot extension cord on the Plug In Carbon Monoxide alarm is a great idea.

Outstanding Device - 08/31/2011
Reviewer: Christina Mohr
I just purchased 3 CO detectors and there compact design works well for us. They are a great value for the price!

EASY!!!! - 08/17/2011
Reviewer: MARY HORTON
I dont know where else to start but I cant get over how easy this thing is. Buy one and youre done. You now comply with the new CO Law. And the price was great!! I love the light up display that tracks CO levels in the home. It is so easy to install. I love the backup battery - NEVER HAVE TO REPLACE EXPENSIVE BATTERIES AGAIN.... at least for a very long time. The alarm volume is adjustable and easy to hear. Easy to test, easy to see, easy to install, easy to comply with the new law. This monitor is a winner and I highly recommend it!

CO alarm - 08/04/2011
Reviewer: Vernon Olson
Overall looks like a good design. Backup batteery allows it to work during power outage. Battery compartment is extremely difficult to open

- 08/01/2011
Reviewer: George Wilson
easy installation

- 07/13/2011
Reviewer: marc boucher
Seem to be very easy to installjust plug it in a household socket. Easy to test.

Less false alarms - 07/12/2011
Reviewer: Patricia Brand Fisher
This unit is more reliable than the other brand we had

- 06/28/2011
Reviewer: Yim  Chang
Easy to use and not very expensive

Nice Plug In Alarm - 06/08/2011
Reviewer: Tracy Horowitz
This seems like a very good alarm and has a battery backup. Only thing is that you cant tell from display whether it is reading or not other than seeing little battery indicator for the backup battery.

CO alarm - 04/27/2011
Reviewer: Robin Masden
excellent product

CO Alarm - 07/16/2009
Reviewer: Devon G.
Easy to mount and install - I recommend!