Kidde Plug-In Carbon Monoxide Alarm with Digital Display and 9-Volt Backup-KN-COPP-3 - The Home Depot


Model # KN-COPP-3

Internet # 100045210

Store SKU # 201001

Plug-In Carbon Monoxide Alarm with Digital Display and 9-Volt Backup

Kidde Plug-In Carbon Monoxide Alarm with Digital Display and 9-Volt Backup

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

$43.97 / each


Model # KN-COPP-3

Internet # 100045210

Store SKU # 201001

Store SO SKU # 198092

The digital readout of the Kidde Plug-In Digital Carbon Monoxide Alarm with 9-Volt Backup continuously displays carbon monoxide levels from 30 to 999 parts per million (PPM) and will sound an 85 dB alarm when dangerous levels are reached. The carbon monoxide level sensed is continuously displayed and updated every 15 seconds, and the peak level memory shows the highest level of carbon monoxide present since the last time the unit was reset or unplugged. Protection continues during power outages thanks to a 9-volt battery backup.

  • Plug-in carbon monoxide detector with digital readout
  • 85 dB alarm sounds when carbon monoxide reaches dangerous levels so you can protect your family
  • Test/reset button to check for proper operation and reset the unit
  • 9-volt battery backup provides protection during power outages
  • Displays carbon monoxide levels from 30 to 999 PPM
  • Updates digital reading every 15 seconds
  • Peak level memory displays highest carbon monoxide level recorded since previous reset or unplugging
  • Plugs into AC receptacles
  • Permanent sensor never needs replacement
  • Note: Product may vary by store

Info & Guides

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Assembled Depth (in.)  1.9 in  Assembled Height (in.)  6 in 
Assembled Width (in.)  3.5 in 
Alarm Type  Carbon Monoxide  Alarm/Detector Features  Battery Back-Up,Digital display 
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 


Rated 4.5 out of 5 by 56 reviewers.
Rated 5.0 out of 5.0 by It's a life saver It was very easy to plug in to the wall. Everyone should have @ least one, it saved my mother's life a few years ago, when her furnace malfunctioned. October 28, 2014
Rated 4.0 out of 5.0 by Easy to use and install Product very user friendly. Very easy to install; basically put the backup battery in and plug it in. Excellent design to rotate the plug to fit the wall outlet. December 10, 2013
Rated 5.0 out of 5.0 by very versatile I bought this because of its digital readout and max CO level memory. After reading the directions I realized that it has a built-in power adapter ("wall wart" style) with a long cord neatly stowed in back, which allows this unit to be directly plugged into an outlet, or the adapter can be plugged into any outlet while the main unit is resting on a table top (stand included) or is mounted on a wall at a more comfortable reading height than the outlet is located. January 21, 2014
Rated 5.0 out of 5.0 by Saved my butt I bought a Nighthawk plug in in 1996. It's now 2012 and I never realized it need to be replaced. OMG, it just went off at 5:00AM this morning. I found that the side venting furnace had a large hole on the top side of the duct due to rust. CM was leaking into the basement and carried up stairs. My wife had complained about headaches, but we never connected the dots until the alarm went off. Needless to say I'm buying 3 more today! Thanks, NH January 23, 2012
Rated 5.0 out of 5.0 by A little expensive but a good value This replaced the same purchased years ago that had outlived its usable life. Easy to install and test and reset the devise. February 17, 2015
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