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Model # KN-COB-DP2

Internet # 205423758

Store SKU # 1000392353

Plug In Carbon Monoxide Alarm with Battery Back-Up

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

$26.97 /each




Model # KN-COB-DP2

Internet # 205423758

Store SKU # 1000392353

Kidde AC/DC carbon monoxide alarm plugs directly into your home’s standard wall outlet. The 9-Volt battery backup provides protection even during power outages when many CO incidences occur. Tamper resist feature deters tampering or theft of the unit.

  • Tamper resistant
  • Battery backup
  • Hush feature
  • 5 year limited warranty

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Alarm Type 
Carbon Monoxide 
Alarm/Detector Features 
Battery Back-Up 
Battery Back-Up 
Commercial / Residential 
Connector/Contact Type 
Power Source 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 


Rated 4.6 out of 5 by 24 reviewers.
Rated 4.0 out of 5.0 by Easy install, peace of mind I thought I was going to have to wrestle this unit out of the plastic, but it has an easy open design with perforations in the plastic (see photo). Item looks nice, functions well and is reasonably priced. Only wish Kiddie, "the worlds largest manufacturer of fire safety products," had a recycling program and/or cradle to grave business model. They state in their core values that they "are environmentally responsible and drive to sustainability." By doing what...? July 21, 2015
Rated 5.0 out of 5.0 by Very Efficient and Looks Good! This alarm was very easy to install. It was recommended by the Gas person who repaired my heater. There is a very bright small green light that helps me navigate through my bedroom when the lights are out. A great value for the price. March 28, 2015
Rated 4.0 out of 5.0 by Good alarm This alarm is powered by an AC outlet but also has a battery backup in case you lose power. The batteries come already installed. All you need to do to use the battery backup is to remove a plastic tab that is coming from the battery compartment. The light on the front indicates if something is wrong with the unit or air quality. Green is good, red is bad. The instructions state that the unit does self checks to ensure everything is working correctly. There is a test button on the front. When pressed, the alarm sound is nice & loud & will certainly alert most people that something is wrong. I would definitely take the 5 minutes to read the instructions when you install this. There is a lot of good info in there, and some minor details that are good to know about this device. Lastly, this alarm is good for 10 years once powered up. After 10 years, annoying alarms will force you to throw it away. August 4, 2015
Rated 5.0 out of 5.0 by Great Product, Sleek Compact, Battery Back up! VIDEO REVIEW I bought this to replace our old hardwired CO detector. The compact design, as well as the plug in functionality, coupled with the battery back up really appealed to me. We purchased this on sale so we got a good value. I did make a video showing my particular CO detector being unboxed and installed. January 29, 2015
Rated 4.0 out of 5.0 by great alarm got it home, hooked it up, seems to be working just fine. Now if we get carbon monoxide poisoning, then we'll know it didn't work. December 10, 2014
Rated 4.0 out of 5.0 by Basic but Vital The Carbon Monoxide monitor seems like your basic model. However, it does have a tape attached where you put the date of purchase to ensure that it's replaced in 10 years. OSHA suggests replacements be made every 5 years. I've only had it a week... September 8, 2015
Rated 5.0 out of 5.0 by Easy, simple The rotating plug makes it useable everywhere. The battery back-up adds another level of safety and continued monitoring. It's perfect. March 25, 2015
Rated 5.0 out of 5.0 by Great Great value for the price. Simple, plug-in CO detector. September 10, 2015
  • 2015-10-04T11:47:55.907-05:00
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