Kidde Carbon Monoxide Alarm AC Powered, Plug-In with Battery Backup KN-COB-DP2
Kidde Carbon Monoxide Alarm AC Powered, Plug-In with Battery Backup KN-COB-DP2
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Kidde Carbon Monoxide Alarm AC Powered, Plug-In with Battery Backup KN-COB-DP2

Key item features

  • Easy Installation: Plugs directly into standard wall outlets with rotating AC blades for vertical or horizontal orientation, ensuring quick and easy setup.
  • Reliable Protection: Provides continuous carbon monoxide monitoring with a loud 85dB alarm and battery backup for protection during power outages.
  • Operational Indicators: Features two LEDs, with red indicating alarm mode and green signifying normal operation, alongside a test/reset button for proper function verification.
  • Smart Alerts: Includes a tamper-resistant alert if unplugged, a low battery hush for up to 12 hours, and an end-of-life alarm for timely replacement.
  • Extended Lifespan: Offers a 10-year product life, providing 40% longer protection compared to other CO alarms.
  • Compact Dimensions: Measures 4.5" X 2.75" X 1.5" and requires two AA batteries (not included) for backup power.
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Current price is $27.47
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Customer ratings & reviews

4.5 out of 5 stars
stars292 ratings153 reviews
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Pros

  • : Offers affordable cost for its functionality.
  • : Simple plug-in installation process.
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Showing 1-3 of 153 reviews

Aug 15, 2016
ColoradoChris
5 out of 5 stars review

Verified Purchase

Excellent product and easy to install

Don't know why a product like this wasn't available the first time I bought CO detectors years ago, but it makes sense that they could be plugged in to an existing electrical outlet and have a back-up battery in case the power goes out. The only thing that I think would improve such a product is if it had a ten-year sealed lithium back-up battery installed in it. But, since they are plugged in so low to the floor, replacing the batteries is not much of an inconvenience. This is a definite improvement over the battery-only kind of unit. I think this new unit provides increased peace of mind.

Helpful?16X7YFK2Y0Q039360952
Jan 25, 2017
cb411
5 out of 5 stars review

Verified Purchase

The importance of carbon monoxide alarms

We all know how important smoke detectors are in our homes. But carbon monoxide alarms are just as important. One thing that makes carbon monoxide poisoning so dangerous is that it is a deadly odorless, colorless gas. This alarm was basically just "plug and play". You just plug it in and it works, testing for carbon monoxide immediately. It has a small green light that lets you know that it is working and that no carbon dioxide has been detected.

Helpful?16X7YFK2Y0Q039360952
Apr 27, 2025
WalmartCustomer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I ordered a bolt quantity, for my renters, and Walmart was the only place that could accommodate the amount that I needed and get it shipped in a timely fashion with a decent price!

Incentivized Review
Helpful?16X7YFK2Y0Q039360952