Kidde Smart Carbon Monoxide Detector, Plug-in with AA Battery Backup, Real-Time Notifications, 2.4 GHz Wi-Fi Enabled, Rotating…
Best for
Best plug-in smart CO-only
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 2 trusted sources
Current price
$59.97
Updated May 18, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, this is the Kidde smart-CO pick for buyers who want the connected features without the indoor air-quality add-on. Walmart.com verified-purchase reviewers highlight the battery backup and clear LED status, and homedepot.com reviewers describe the setup as 'a no brainer' for households with a gas stove. The Kidde-app experience and 2.4GHz Wi-Fi pairing are the same as the IAQ sibling, just minus the air-quality readout, which trims the price meaningfully.
What reviewers liked
- Plug-in with AA battery backup keeps protection active during outages
- 2.4GHz Wi-Fi push notifications via the Kidde app
- Cheaper than the IAQ sibling for buyers who don't need air-quality monitoring
- UL 2034 5th Edition certified per the product listing
- Walmart.com and homedepot.com reviewers report straightforward setup
Where it falls short
- Very thin Amazon review volume (17) limits real-world reliability data
- r/firealarms threads continue to flag Kidde quality control
- No indoor air-quality screen, unlike the slightly pricier sibling
- Wi-Fi-only (no Matter or Thread) ties you to the Kidde app
- Smart features add cost over the non-smart Kidde plug-in
Across the reviewers we read, this is the Kidde smart-CO pick for buyers who want the connected features without the indoor air-quality add-on. Walmart.com verified-purchase reviewers highlight the battery backup and clear LED status, and homedepot.com reviewers describe the setup as 'a no brainer' for households with a gas stove. The Kidde-app experience and 2.4GHz Wi-Fi pairing are the same as the IAQ sibling, just minus the air-quality readout, which trims the price meaningfully.
The community signal is borrowed from the broader Kidde smart line rather than this exact SKU. r/smarthome and r/homeautomation high-trust threads on Kidde smart detectors lean positive on the 10-year lithium backup and interconnect behavior, while r/firealarms commenters continue to flag Kidde quality-control concerns over recent years. Amazon's 4.6 star average is supportive but the 17-review sample is too thin to lean on alone.
For most shoppers, the decision between this and the IAQ version (B0BZQFGG64) comes down to whether you value the air-quality screen enough to pay the difference; the underlying CO detection is the same.
- Real-Time Kidde App Notifications
- Get alerted to CO when you’re home or away (no subscription required); sounds a loud 85-dB alarm when CO is detected; uses 2.4 GHz Wi-Fi
- Simple Set Up
- Download the Kidde app, scan the QR code on the back of the CO alarm, and plug into a standard outlet; get seamless smart home integration with Alexa-enabled devices and Google Home
- Plug-In + Aa Battery Backup
- Plug into a standard 120V outlet with two included AA backup batteries for coverage during power outages; rotating plug fits vertical or horizontal outlets; sleep peacefully with no low battery chirps
- 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 Tech Enthusiasts
- This device delivers reliable carbon monoxide monitoring for everyday home use; perfect for homeowners and renters that want to check CO levels when they’re home or away, and those that need to monitor multiple properties
Just remember they should be replaced every 10 years. Most places require hardwire to meet code. I used this model from first alert SMICO105-AC.
Kidde has had some real issues with quality control over the past couple of years, leading to an increase in false alarms (many other posts in ...
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“Kidde Carbon Monoxide Detector review” · YouTube
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