0047871061372
Discontinued

Kidde

Model # KN-COB-LCB-A

Internet # 100594399

Plug-In Carbon Monoxide Alarm with Battery Backup

This item has been discontinued.
The Home Depot no longer carries this specific product.

FREQUENTLY BOUGHT TOGETHER

PRODUCT OVERVIEW

Model # KN-COB-LCB-A

Internet # 100594399

Store SO SKU # 198092

The Kidde Plug-In Carbon Monoxide Alarm with 9-Volt Backup connects directly into a wall socket for quick and easy installation and protection from tasteless and odorless carbon monoxide gas. This alarm continues to provide protection in power outages as it includes a 9-Volt battery backup. It offers a low-battery warning in case the battery needs replacing. Green and red LED's visually indicate the status of the alarm and a tamper-resistant feature alerts you to when the unit has been removed from the socket.

  • Carbon monoxide detector uses advanced technology to monitor for carbon monoxide levels and features the nighthawk electro-chemical sensor
  • Plugs directly into a standard wall outlet making installation quick and easy
  • Low-battery hush silences low-battery chirp warning for up to 12 hours in order to maintain protection without having to replace the battery at an inconvenient time
  • 9-Volt battery backup provides protection during power outages
  • Tamper-resistant feature triggers constant alarm mode if it has been unplugged or has come loose from the outlet
  • Battery pull-tab helps reduce battery installation time and keeps battery fresh
  • 2 LED lights signal green for normal operation and red for alarm mode






Info & Guides

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SPECIFICATIONS

Dimensions
Product Depth (in.) 
1.6875 
Product Height (in.) 
3.875 
Product Width (in.) 
Details
Alarm Type 
Carbon Monoxide 
Alarm/Detector Features 
Battery Back-Up,Tamper Resistant 
Battery Back-Up 
Yes 
Commercial / Residential 
Commercial / Residential 
Connector/Contact Type 
None 
Included 
Batteries 
Power Source 
Plug-In 
Returnable 
90-Day 
Voltage (volts) 
120 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 

MORE PRODUCTS WITH THESE FEATURES

Power Source: Plug-In
Brand: Kidde
Review Rating: 3 & Up
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4 Questions14 Answers

Customer Questions & Answers

Plug-In Carbon Monoxide Alarm with Battery Backup
Plug-In Carbon Monoxide Alarm with Battery Backup

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6 answers

How many would you need for a 2300 sqft house, 2 stories

This question is from Plug-In Carbon Monoxide Alarm with Battery Backup
Asked by
South Austin
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June 16, 2014
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Answers (6)

Asked by
highlands ranch co
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January 19, 2015
Answer: 
By Colorado law a co2 alarm should be within 15 feet of each bedroom.
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Asked by
Green Valley, AZ
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Home Improvement Profile: Other
August 15, 2014
Answer: 
My house is 2500 square feet and I was told to buy just one. However two couldn't hurt since they are not that expensive. I was told to mount them in a low position since CO2 is lighter than air and is of course odorless.
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Asked by
Bolingbrook, IL
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July 15, 2014
Answer: 
My detector was purchased for a one-story home with a finished basement. I installed it on the landing of the stairs to the basement so it is halfway between the first floor and the basement. When I had a two story house, of approximately the same square feet, I opted to have two CO detectors, one in the upstairs hallway for all the bedrooms and one on the first floor near the basement stairs - although Read More
My detector was purchased for a one-story home with a finished basement. I installed it on the landing of the stairs to the basement so it is halfway between the first floor and the basement. When I had a two story house, of approximately the same square feet, I opted to have two CO detectors, one in the upstairs hallway for all the bedrooms and one on the first floor near the basement stairs - although my basement there was not finished, my concern was that the furnace could emit CO so I wanted the detector near the entry to the basement. Hope this helps. Read Less
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Asked by
Catonsville, MD
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July 8, 2014
Answer: 
One on each floor.
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Asked by
Annapolis, MD
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Home Improvement Profile: DIYer
June 17, 2014
Answer: 
Hello Heather,
You would need a minimum of two units, one for each floor. However, what you really need to do is to fully assess all the places in your house where people sleep and then compare it to possible sources of Carbon Monoxide (CO) and then decide. For example, if all your bedrooms are on the second floor and the only possible sources of CO are from your furnace and water heater in the attached Read More
Hello Heather,
You would need a minimum of two units, one for each floor. However, what you really need to do is to fully assess all the places in your house where people sleep and then compare it to possible sources of Carbon Monoxide (CO) and then decide. For example, if all your bedrooms are on the second floor and the only possible sources of CO are from your furnace and water heater in the attached garage, then you would probably be OK with one detector in the hallway where all the bedrooms open into and one detector on the first floor between the entry to the garage and where people tend to spend their time, such as a living room, etc.
Because this is a plug in unit, you will be limited by where your outlets are located. CO is not a gas that "hugs" the ground. It will disperse fairly evenly in a room. That being said, you don't want to put the detector in a ceiling mounted outlet or in a dead air space because then it may take a long time for the gas to reach from its source to the detector and may then fill up the room with deadly CO before the detector goes off. The attached link is from the US Consumer Product Safety Commission and is a pamphlet on where to place CO detectors based on possible sources and bedrooms. https://www.cpsc.gov//PageFiles/121843/464.pdf
The reason for the bedroom issue is that if there is a CO leak, people will have 7-9 hours of breathing it before they wake up and go outside in their normal activities. That is IF they wake up! Some don’t! I was lucky and did not wake up dead after being exposed due to a failed unit.
Finally, please feel free to call your local fire department to have them come out and help you with CO detector and smoke alarm placement in your residence. They are usually very happy to do so and you will feel much better having had their expert assistance. I hope this helps! :) Good luck! Read Less
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Asked by
Chicago Illinois
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June 17, 2014
Answer: 
The manufacture does not advise placement by square feet, instead the suggest placement on each level of home (basement, main, second floor). They also advise to put in living areas or near bedrooms so it will wake you if sleeping. Here is a site with installation information.
http://www.homedepot.com/catalog/pdfImages/6a/6ab9e463-affe-448b-83c4-1f258cd58895.pdf
If you need more details, go to
Read More
The manufacture does not advise placement by square feet, instead the suggest placement on each level of home (basement, main, second floor). They also advise to put in living areas or near bedrooms so it will wake you if sleeping. Here is a site with installation information.
http://www.homedepot.com/catalog/pdfImages/6a/6ab9e463-affe-448b-83c4-1f258cd58895.pdf
If you need more details, go to www.kiddehelp.com
Charlotte
I am a Home Depot associate trained and authorized to help people on the Internet.
Read Less
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5 answers

where to place in a house. High or Low?

This question is from Plug-In Carbon Monoxide Alarm with Battery Backup
Asked by
Ceror Gordo, IL
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May 5, 2014
I have read the enclosed paper and cant see anywhere it tells where to place in house.
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Answers (5)

Asked by
highlands ranch co
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January 19, 2015
Answer: 
Since these are wall plug units and wall plugs are approximately 12 to16 inches from the floor they will by necessity close to the floor
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Asked by
Green Valley, AZ
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Home Improvement Profile: Other
August 15, 2014
Answer: 
I don't have a CO2 detector yet but will buy one. The fire department personnel told me to mount it in a low place since CO2 is lighter than air and if the detector is mounted in a high position it will be too late by the time the detector actually detects the presence of CO2.
I'll mount mine on a wall outlet close to the floor and away from the garage which is where my furnaces are located. Hope this Read More
I don't have a CO2 detector yet but will buy one. The fire department personnel told me to mount it in a low place since CO2 is lighter than air and if the detector is mounted in a high position it will be too late by the time the detector actually detects the presence of CO2.
I'll mount mine on a wall outlet close to the floor and away from the garage which is where my furnaces are located. Hope this helps. Read Less
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Asked by
Catonsville, MD
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July 8, 2014
Answer: 
plug in any outlet.
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Asked by
Luray,Va.
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May 20, 2014
Answer: 
I suggest in approx. center of house on 1st floor.
But, i would recomend you talk to a qualified
plumber or electrician or your local building inspector.
Good Luck,Best Regards,Bobby.
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Asked by
Annapolis, MD
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Home Improvement Profile: DIYer
May 6, 2014
Answer: 
Greetings Lizann,
Because this is a plug in unit, you will be limited by where your outlets are located. Carbon Monoxide (CO) is not a gas that "hugs" the ground. It will disperse fairly evenly in a room. That being said, you don't want to put the detector in a ceiling mounted outlet or in a dead air space because then it may take a long time for the gas to reach from its source to the detector and may Read More
Greetings Lizann,
Because this is a plug in unit, you will be limited by where your outlets are located. Carbon Monoxide (CO) is not a gas that "hugs" the ground. It will disperse fairly evenly in a room. That being said, you don't want to put the detector in a ceiling mounted outlet or in a dead air space because then it may take a long time for the gas to reach from its source to the detector and may then fill up the room with deadly CO before the detector goes off. The attached link is from the US Consumer Product Safety Commission and has lots of info on CO, CO detectors and placement.
https://www.cpsc.gov/Safety-Education/Safety-Education-Centers/Carbon-Monoxide-Information-Center/Carbon-Monoxide-Questions-and-Answers-/
I found, that for me, it was better to buy a CO detector model that had a 10 year sealed battery with a digital readout. I could place it anywhere and I mounted it in a hallway between the potential source (furnace, attached garages) and the bedrooms and at eye level, so I could see its blinking light and test it easily. After having experienced mild CO poisoning due to a faulty CO detector, I did a good deal of research on this issue. I purchased a Kidde C3010-D model, which is available at Home Depot online and also in my local HD. It is a bit more expensive than your model, but well worth it in my mind. The 10 year sealed battery means no more replacing 9 Volt batteries and when you press the test button, you get a clear and unambiguous confirmation that the unit is working.
Finally, please feel free to call your local fire department to have them come out and help you with CO detector (and smoke alarm) placement in your residence. They are usually very happy to do so and you will feel much better having had their expert assistance. I hope this helps! :) Read Less
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2 answers

when changing battery, how do you get it to stop beeping?

This question is from Plug-In Carbon Monoxide Alarm with Battery Backup
Asked by
wisconsin
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January 13, 2015
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Answers (2)

Asked by
highlands ranch co
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January 19, 2015
Answer: 
unplug, hold test/reset button for at least 3 seconds and pug in wall socket
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January 15, 2015
Answer: 
Hello. In reference to your question, there is a button shaped like the letter T on the back of the alarm. If the tamper-resist alert is activated, then when the alarm is plugged in, the outlet will hold down the T shaped button. If the button pops out because the unit is unplugged or loose in the outlet, the unit will make a long constant tone. When you unplug the alarm, hold down that T shape button. Read More
Hello. In reference to your question, there is a button shaped like the letter T on the back of the alarm. If the tamper-resist alert is activated, then when the alarm is plugged in, the outlet will hold down the T shaped button. If the button pops out because the unit is unplugged or loose in the outlet, the unit will make a long constant tone. When you unplug the alarm, hold down that T shape button. This will keep it from making a long constant tone. This is an optional feature to keep kids from messing with the alarm or if you have the alarm in a rental house or hotel. This alarm used to come with this feature turned on and could be turned off if you wish. We now sell the alarm with this feature turned off and it can be turned on if you wish. For information on how to turn off this feature or any other questions, please call us at 1-800-880-6788. Thank you for your interest. Read Less
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1 answer

Does a Kidde plug in unit without battery back up go bad?

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Asked by
North Carolina
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March 2, 2015
i do not have the manual
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Answer (1)

March 2, 2015
Answer: 
In reference to your question, our carbon monoxide alarms made before January 2, 2013 have a lifespan of 7 years from first use. All CO alarms have an "End of life" notification and our alarms from before January 2013 will chirp every 30 seconds or display ERR and chirp every 30 seconds. Kidde carbon monoxide alarms made on or after January 2nd 2013 will have a lifespan of 10 years and will come up with Read More
In reference to your question, our carbon monoxide alarms made before January 2, 2013 have a lifespan of 7 years from first use. All CO alarms have an "End of life" notification and our alarms from before January 2013 will chirp every 30 seconds or display ERR and chirp every 30 seconds. Kidde carbon monoxide alarms made on or after January 2nd 2013 will have a lifespan of 10 years and will come up with END to mark the end of life. Many of our older alarms only had a 5 year warranty even though they had a 7 year lifespan. However, if you feel your alarm is not performing properly before the end of it's life, please call us with the alarm in hand near an outlet at 1-800-880-6788 and we will be happy to troubleshoot it with you and answer any questions. Thank you for your interest. Read Less
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CUSTOMER REVIEWS

Rated 3.8 out of 5 by 58 reviewers.
Rated 5.0 out of 5.0 by awesome product fantastic idea with a ten year battery ..no more dead battery beep in the middle of the night. So easy, just take out of the package and plug in. August 27, 2014
Rated 2.0 out of 5.0 by Would not reccomend Bought this about 1 year ago. One day it went off like there was carbon monoxide. My others (different brand) did not go off. I checked the Kidde model and took it out to fresh air and removed battery. Still was going off for a few minutes. I let it sit in the garage for over 6 months, Today I put in a brand new battery. It did the same thing as before. It will not shut off. Can not return it because I don't have the recipe. Im out 30 bucks. I would not recommend buying this product. November 25, 2014
Rated 5.0 out of 5.0 by Carbon Monoxide detector Got the unit very quickly. It works great and may save our lives. January 27, 2015
Rated 1.0 out of 5.0 by Will not work after installing new battery After installing new battery doesn't go to operating mode January 19, 2015
Rated 5.0 out of 5.0 by PLUG-IN CARBON MONOXIDE ALARM WITH BATTERY BACKUP WE COMPARED ONLINE WITH OTHER STORES AND HOME DEPOT HAD THE BEST PRICE : ( HOME USE ) PLUG-IN CARBON MONOXIDE ALARM WITH BATTERY BACKUP ( HOME USE ) December 30, 2014
Rated 1.0 out of 5.0 by Terrible I have purchased three of these carbon monoxide monitors. One is still working OK. One worked for almost 1 year and then went on the fritz. I tried to replace the bad one. Home Depot was out of stock. The person at the customer service desk helped me order another one. I came in and picked up the monitor. The new monitor did not work at all. I finally replaced the two defective monitors with an alternative monitor from Kidde. September 23, 2014
Rated 5.0 out of 5.0 by Would purchase this product again! We purchased this product 7 years ago and when it reached the end of its life, it let us know with an intermittent beeping. With all of the items we need to take care of every day, it is nice to come across an item that takes care of itself! Easy installation and you never know it's there. Be careful when reading the other reviews, operator error seems to be the problem with some of the bad reviews...for instance, the instructions say not to place the item in a kitchen setting as it can remit an alarm due to what's happening in the kitchen! We will buy this product again and again! January 1, 2013
Rated 1.0 out of 5.0 by Lousy Product I bought this, got it home to replace the one i'd have for 5 years and the instructions said it would start beeping in three years because it would wear out within that time. I plugged it in and tried the test button - nothing. So I left it plugged in overnight thinking it needed to "set itself" - next day I tried it again - nothing. So I unplugged it and put it on the counter to return it thinking it was defective. My wife went to move it and it went off and would not turn off until she smashed it! Don't know if HD will take it back, but I don't care - I'll get a First Alert. May 26, 2010
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