Kidde Carbon Monoxide + Explosive Gas, Natural Gas & Propane Alarm, Plug-in with 9V Battery Backup, Digital Display, 85 dB Alarm…
Best for
Best for homes with fuel-burning appliances
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$57.47
Updated Jun 27, 2026 · 1 min read
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across verified-purchase reviewers, this Kidde unit pairs carbon monoxide detection with explosive, natural, and propane gas sensing, earning a 4.6 average over roughly 520 ratings. That dual-threat coverage makes it a distinctive option for homes with gas ranges, furnaces, or propane appliances, and buyers highlight the digital display and plug-in convenience with 9V battery backup. No independent lab tests, specialist-subreddit discussions, or teardown videos appeared in the supplied signals for this model, so its measured accuracy and false-alarm behavior cannot be independently verified here.
What reviewers liked
- Combines CO with explosive, natural, and propane gas detection
- Strong verified-purchase rating: 4.6 across 524 reviews
- Digital display and plug-in with 9V battery backup
Where it falls short
- Not an app-connected smart detector despite the category
- No independent expert or community testing in the supplied data
- 9V backup battery requires periodic replacement
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Across verified-purchase reviewers, this Kidde unit pairs carbon monoxide detection with explosive, natural, and propane gas sensing, earning a 4.6 average over roughly 520 ratings. That dual-threat coverage makes it a distinctive option for homes with gas ranges, furnaces, or propane appliances, and buyers highlight the digital display and plug-in convenience with 9V battery backup.
No independent lab tests, specialist-subreddit discussions, or teardown videos appeared in the supplied signals for this model, so its measured accuracy and false-alarm behavior cannot be independently verified here. For shoppers whose primary concern is combustible-gas plus CO coverage rather than smart-home notifications, the customer consensus is positive and the feature set is the most differentiated in the pool.
- Easy Installation - simply plug-in to a standard, 120V outlet in your home
- 9-volt battery backup provides protection during a power outage
- Digital LED display shows the level of carbon monoxide the CO alarm is sensing or states "GAS" when explosive gas is present
- 85-decibel alarm announces when carbon monoxide or explosive gas is detected
- Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
If the consensus convinced you
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