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  • First Alert CO605 Carbon Monoxide Plug-In Alarm with Battery Backup
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First Alert CO605 Carbon Monoxide Plug-In Alarm with Battery Backup

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List Price: $41.99
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  • 120-volt AC plug-in carbon monoxide alarm with battery back-up
  • Uses electrochemical carbon monoxide sensor--the most accurate technology available
  • Simple to use silence/test button
  • Low battery warning; end-of-life timer
  • Includes 1-9V battery (battery updated from 2-AA to 1-9V in Nov 2013); 7 year limited warranty
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Frequently Bought Together

First Alert CO605 Carbon Monoxide Plug-In Alarm with Battery Backup + First Alert CO615 Dual Power Carbon Monoxide Plug-In Alarm with Battery Backup and Digital Display + First Alert SA320CN Dual Sensor Battery-Powered Smoke and Fire Alarm
Price for all three: $68.01

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Product Information

Technical Details
Part Number CO605
Item Weight4.2 ounces
Product Dimensions1.8 x 6.8 x 10 inches
OriginMexico
Item model numberCO605
SizeOne Size
ColorWhite
Power Sourcecorded-electric
Item Package Quantity1
Number Of Pieces1
Batteries Included?No
Batteries Required?No
Warranty DescriptionFIVE YEAR LIMITED
  
Technical Specification
Additional Information
ASINB000ND74XA
Best Sellers Rank #623 in Home Improvement (See top 100)
Shipping Weight9.4 ounces (View shipping rates and policies)
ShippingCurrently, item can be shipped only within the U.S.
Date First AvailableJune 27, 2007
  
Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Product Description

Amazon.com

Protect yourself and your family from the potentially deadly effects of carbon monoxide with the First Alert CO605 Plug-In Carbon Monoxide Alarm with Battery Backup. This easy-to-install, UL-listed alarm features advanced technology, a user-friendly design, and backup battery power to provide continual monitoring of carbon monoxide levels. It also comes complete with an "Alarm Action" chart that instructs you on what to do if the alarm sounds.


CO605 Carbon Monoxide Plug-In Alarm
At a Glance:
  • Continuously monitors and detects CO in your home
  • Easy-to-install design; simply plugs into an outlet
  • A/C powered with battery backup
  • Low-battery signal; end-of-life alarm
  • "Test/Silence" button for convenient operation


WHERE TO PLACE SAFETY PRODUCTS:

Smoke Alarms: 1 in every bedroom and at least 1 on every level of the home.

Carbon Monoxide Alarms: 1 on every level of the home and 1 in each sleeping area.

Fire Extinguishers: 1 on every level of the home and 1 each in the kitchen and garage.



Detects the CO you can't see,
smell, or taste. View larger.


Where does carbon monoxide come from?
Carbon Monoxide: The Leading Cause of Accidental Deaths in the U.S.
Carbon monoxide, an invisible, odorless gas, is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until it's too late. Because you can't see, taste, or smell it, CO can kill you before you even know it's there. Likewise, exposure to low levels over time can make you ill.

The Consumer Product Safety Commission recommends that every home have at least one carbon monoxide alarm with an audible warning signal--like the CO605--installed near sleeping areas. An alarm like the CO605 can detect the CO you can't see, smell, or taste before it causes any physical harm to you or your family.

Electrochemical Technology for Accuracy and Longer Life
The CO605 uses an electrochemical carbon monoxide sensor--the most accurate CO sensor available. In comparison to more commonly available technologies, electrochemical technology is highly accurate, requires a lower amount of power, and boasts a longer life. If the CO605's sensor detects a high concentration of CO, the unit will sound a clear, loud, 85-decibel alarm, giving you a chance to either ventilate the area or safely evacuate.

A/C Power with Battery Backup and User-Friendly Design
This unit runs on A/C power, but in case of an electrical outage, it will switch to battery operation. This gives you peace of mind during storms--when you're more likely to use generators that could potentially give off dangerous levels of CO.

For added convenience, installation is a snap. Simply plug the CO605 into any wall outlet--with no additional mounting--and it's ready to go. The unit features two 'AA' batteries to provide backup power to the monitor in the case of power disruption or outage.

Operation is equally trouble free. One button clearly labeled "Test/Silence" lets you test the unit to see if it's running properly or silence it during a false alarm.

Continually Monitors Both CO Levels and Battery Power
To give you real peace of mind, the CO605 continually monitors CO and re-alarms if dangerous levels persist. At the same time, a low-battery signal let's you know when it's time to replace the backup batteries (included); a low-battery mute quiets the signal for up to eight hours. An easy, front-open compartment allows for easy battery changes without dismounting the alarm, and an end-of-life chirp lets you know when it's time to replace the unit.

The CO605 comes with two 'AA' batteries and a five-year limited warranty. It also comes complete with an "Alarm Action" chart that instructs you on what to do if the alarm sounds.

What's in the Box
Carbon monoxide alarm, two 'AA' batteries, and user's manual complete with "Alarm Action" chart.




Selecting a First Alert
Carbon Monoxide Alarm
Model#CO400CO410CO600CO605CO615
Details:Battery Operated Carbon Monoxide AlarmsPlug-In Carbon Monoxide Alarms
Power Supply2-AA Batteries2-AA Batteries120-volt AC Plug-in120-volt AC Plug-in120-volt AC Plug-in
Battery Backup   
Digital Display   
Single-Button Silence/Test
EZ-Access Battery Compartment 
Low-Battery Warning/Silence 
Loud, 85-dB Alarm
End-of-Life Timer
5-Year Limited Warranty


Customer Questions & Answers

Customer Reviews

Very easy to use.
GreyFox
It works well and gives us peace of mind, It is very simple to set up and use and is not ugly.
RICK
Good safety product to own.
L. A.

Most Helpful Customer Reviews

45 of 46 people found the following review helpful By Tab Man on December 22, 2007
Verified Purchase
I really like this CO Detector. Don't confuse this with a model that only works on battery power or A/C power. This one runs on A/C power until your power goes out and then runs on battery power. This is necessary. Say your power goes out and someone stupidly turns on a gas heater in your house. The detector will go off when the CO level rises. If your detector only runs on A/C power, you'd be toast. For your sake and your kids sake, by a CO detector that runs on both A/C and battery power. I've had this for a year with no problems.
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60 of 68 people found the following review helpful By Elizabeth Mack VINE VOICE on January 28, 2013
Vine Customer Review of Free Product ( What's this? )
Here's one thing I decided: I want a big red "0" (zero) on my carbon monoxide monitor!

First off, this First Alert CO605 Carbon Monoxide monitor is a good basic no-frills CO monitor by First Alert. As far as brands go, both of the big guys in carbon monoxide monitors, First Alert and Kidde (together they have 3/4 of the CO monitor business), are excellent brands that I've had great experiences with for years, in both smoke detectors and carbon monoxide monitors. I also have purchased and used both First Alert and Kidde fire extinguishers.

At first when researching for this review, I was wishing I'd gone for the digital display and purchased the First Alert CO615 Carbon Monoxide Plug-In Alarm with Battery Backup and Digital Display instead. While this is an OK monitor, the CO615 has a digital display, which to me makes a big difference. Should it make a big difference?

DIGITAL DISPLAY OR NOT? I thought that maybe I just wanted a digital display because it is comforting to me to see a nice "0" as the reading when I walk by it, as my other ones show. It turns out it's not just the peace of mind factor, because when I looked into it further, I discovered that a very low CO concentration can affect heart and lung patients (one source said 1-70ppm and one said 30ppm, but any way you look at it, a digital reading gives you the information you need to decide what to do). In addition to heart and lung patients, even low CO concentrations can also affect seniors, kids, babies, and unborn babies. That's concerning to me because I found out that many CO detectors don't trigger an alarm until CO levels are 70 ppm or higher.
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16 of 17 people found the following review helpful By Paradox13 on November 1, 2013
Verified Purchase
So the first one I got I returned, because I thought there was some problem getting the backup battery to sit correctly in the battery compartment. The second one I got (and major kudos to Amazon for the easy and speedy return and replacement!) seemed to have the same problem. But after some examination, I figured out I just really had to push hard on the battery to get it to "click" in to the sockets and compartment correctly. Once I did that, the unit worked flawlessly and I am quite happy with it.

As a note, the red indicator light stays on when it is plugged in to AC power. This threw me for a bit when I was setting it up as my previous alarm's indicator light only came on when there was an actual alarm.
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13 of 15 people found the following review helpful By SOLATSA on September 8, 2013
Verified Purchase
So far so good. No alarms yet, although the 9 volt battery was a little difficult to connect. You have to press quite hard to get the battery snapped it correctly or it beeps every minute until you fix it. This was not real clear in the directions.
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5 of 6 people found the following review helpful By Katie Allen on March 1, 2014
Verified Purchase
I bought two of these. I plugged them both in and they immediately started beeping at me once every minute. It is not the CO alert beep. It is the low battery beep. I took the batteries out and plugged them into the wall. They still continued to beep. I replaced the batteries. They still continued to beep. I couldn't stand it any more. So, I finally unplugged both of them and took the batteries out. I read through the instructions many times and could not find any instructions on what to do about the beeping. I also tried pushing the test button. It did nothing. The constant beeping almost drove me crazy! I will not buy this brand again.
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6 of 8 people found the following review helpful By W. Parrish on February 7, 2014
There are two versions of this product that look similar but are actually quite different. Both have their unique "features".

I did not purchase these from Amazon (needed them right away), so I don't know what you might get from them or from their other affilitated vendors that sell this unit.

I needed 4 of these units total (large 2 story house with multiple sleeping areas).

I ended up getting one with AA batteries, and 3 with a 9V battery. Both had packages labeled CO605 with UPC 29054 00068. The model number on the 9V version (if you look on the unit itself) is actually CO606 and it indicates manufacturing date of 2013 Jun 1921. (I always thought if form fit or function changed that the product number was supposed to change - did I miss something?)

The battery installation is totally different in the two versions. The AA unit has an installation door on the front of the unit. The 9V version batteries install from the back - next to the prongs for the plug.

On the 3 "9V battery" units, the ease of battery installation varied. Very easy on 1 (I could just push it in). Two required what I consider to be excessive pressure (using my thumb helped), and one required me to slightly bend the plastic rod that seems to be designed to keep the door from closing without the battery installed. If I didn't bend the rod a little (toward the hinge), it would have broken.

I was able to get the AA batteries in just fine, but as others have noted, you could open, but not easily close, the battery door until the AA batteries were well seated. That door is a very poor design.

The AA version has a removable "wall wart", so you can mount the unit away from the power plug, the 9V one does not.
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First Alert CO605 Carbon Monoxide Plug-In Alarm with Battery Backup
This item: First Alert CO605 Carbon Monoxide Plug-In Alarm with Battery Backup
Price: $41.99 $23.19
Ships from and sold by Amazon.com