Kidde Carbon Monoxide Detector, Plug-in with AA Battery Backup, Easy-to-Read Digital Backlit Display, 85 dB Alarm, Rotating Plug…
Best for
Best overall
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$43.97
Updated Jun 27, 2026 · 1 min read
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the verified-purchase reviewers we read, this Kidde plug-in CO detector is the runaway volume leader in this pool, carrying a 4.7 average across more than 27,000 retailer ratings. That depth of customer feedback is the single most informative signal we have here, and it points to a unit that buyers find reliable, easy to read thanks to its backlit digital display, and convenient to deploy via its rotating plug with AA battery backup. We found no independent expert testing, specialist-subreddit discussion, or teardown video in the supplied data for this model, so we cannot corroborate its accuracy or response time against lab measurements.
What reviewers liked
- Exceptional verified-purchase signal: 4.7 average across 27,000-plus reviews
- Backlit digital display and LED status indicators praised for readability
- Rotating plug plus AA battery backup adds placement flexibility
Where it falls short
- Not a true app-connected smart detector despite its popularity in smart searches
- No independent expert lab or specialist-community testing was available to corroborate accuracy
- Plug-in form factor ties placement to outlet locations
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Across the verified-purchase reviewers we read, this Kidde plug-in CO detector is the runaway volume leader in this pool, carrying a 4.7 average across more than 27,000 retailer ratings. That depth of customer feedback is the single most informative signal we have here, and it points to a unit that buyers find reliable, easy to read thanks to its backlit digital display, and convenient to deploy via its rotating plug with AA battery backup.
We found no independent expert testing, specialist-subreddit discussion, or teardown video in the supplied data for this model, so we cannot corroborate its accuracy or response time against lab measurements. It is also worth noting this is a plug-in CO detector with status LEDs rather than a fully app-connected 'smart' device, so shoppers specifically seeking phone notifications should look to the Wi-Fi or Ring-enabled picks below. As a core, high-confidence CO detector, however, the consensus from real buyers is the most positive in the category.
- Detects Carbon Monoxide
- With backlit display that shows CO levels & sounds a loud 85 dB alarm when CO is detected to signal evacuation; sleep peacefully with no nighttime chirps; LED warning light indicates hazard; Test/Hush button for quick checks
- Plug-In Power With Battery Backup
- CO detector plug-in operates on 120V AC with 2 AA backup batteries (included) for detection during outages; rotating plug fits vertical or horizontal outlets; includes power surge immunity to help maintain performance
- Travel-Ready Design*
- Compact carbon monoxide detector is suitable for use at home or for travel; lightweight design allows you to take it on the go to use in hotels or vacation rentals when detection is needed away from home
- Tested & Trusted
- This carbon monoxide alarm is rigorously tested to meet UL 2034 5th Edition standards, and is ETL Listed; includes a 10-year limited warranty on alarm
- Built For Every Household
- Designed to help provide dependable carbon monoxide monitoring for everyday residential use; supports renters, homeowners, and pet owners seeking added awareness and protection from CO hazards in the home
If the consensus convinced you
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