Kidde Plug-In Combination Explosive Gas/Carbon Monoxide Alarm Detector with Battery Back-up-KN-COEG-3 at The Home Depot
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Model # KN-COEG-3

Internet # 100003545

Store SKU # 791898

Plug-In Combination Explosive Gas/Carbon Monoxide Alarm Detector with Battery Back-up

Kidde Plug-In Combination Explosive Gas/Carbon Monoxide Alarm Detector with Battery Back-up

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

Was   $59.97
$39.88 / each

Save $20.09 (34%)

Item cannot be shipped to the following state(s): GU,VI


Model # KN-COEG-3

Internet # 100003545

Store SKU # 791898

Store SO SKU # 198092

Protect your home from dual threats by utilizing the Kidde AC Combination Carbon Monoxide/Explosive Gas Alarm. This combination alarm features a digital display that shows the current level of carbon monoxide or methane or propane gas in the air. When a threat is detected, this alarm produces a loud 85 dB pulsing alert that is sure to get your attention.

  • Combines a carbon monoxide and natural gas detector in a single unit for comprehensive protection
  • Metal oxide gas sensor is designed to detect particles of airborne methane and propane
  • 85 dB pulsing alarm sounds to alert you of a potential threat
  • Test/reset button performs a system check to ensure proper operation
  • 9 Volt battery backup provides protection during power outages
  • Peak level button recalls the highest carbon monoxide reading last detected since the most recent reset or power disconnection
  • Digital display shows the level of carbon monoxide or gas currently being detected
  • Install into an AC wall outlet directly or with the included 6 ft. power cord
  • UL listed

Info & Guides

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Alarm Type  Carbon Monoxide,Natural Gas,Propane  Alarm/Detector Features  Battery Back-Up,Digital display 
Assembled Depth (in.)  4 in  Assembled Height (in.)  1.25 in 
Assembled Width (in.)  6 in  Calibration (% of LEL) 
Certifications and Listings  1-UL Listed  Connector/Contact Type  None 
Coverage area (sq. ft)  Fixed or portable  Fixed 
Gas(es) detected  Natural gas  Included  Batteries 
Minimum detection (ppm)  30  Product Depth (in.)  1.8 
Product Height (in.)  6.1  Product Width (in.)  3.8 
Response time (sec.)  Returnable  90-Day 
Voltage (volts)  120 


Rated 4.3 out of 5 by 64 reviewers.
Rated 5 out of 5 by This product is a must have. The product has Night Hawk technology which our fire dept suggest a carbon monoxide alarm have. It is easy to read, has a battery back up and is reasonably priced. We have one in our lower level, main level and upstairs level of our home. The carbon monoxide/gas alarm combination is the best way to go. March 4, 2014
Rated 2 out of 5 by Constant false alarms I owned two of these units and they alarmed all the time. Anything that had a scent such as cleaners would trigger the unit. It appears to be too sensitive for explosive gas detection. To my amazement human and pet "natural gas" triggered the units too. I'm not kidding. It took a while to figure that one out. I have my doubts that would be an explosive hazard. October 2, 2014
Rated 5 out of 5 by Well worth the money Bought this because my boys bedroom was being built close to the furnace. Didn't expect it to go off the minute I plugged it in. Turns out there was an issue with the furnace. Awesome product, a true life saver. October 1, 2014
Rated 5 out of 5 by Excellent unit - no issues after several years of continuous use We purchased this detector a few years ago, and have had no issues with it since. Last night, the gas detector went off. I couldn't smell the odorant in the leaking gas, but I still shut off the flow and called the gas company. They found two small leaks, and were surprised that the unit detected the gas levels found. I previously owned a Nighthawk CO detector (no gas detctor), and it performed quite well. August 8, 2013
Rated 5 out of 5 by Great unit. Detects explosive gas I bought this to not only detect carbon monoxide, but also to detect explosive gas. I am sure it works on propane, but not sure about natural gas. The unit has not sent off any false alarms which is great. September 16, 2014
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