Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
4.7 | 36,822 ratings
Price: 23.97
Last update: 03-26-2026
About this item
- Electrochemical sensor technology detects CO gas
- Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included); Install on a wall of your home or place on a tabletop
- Green LED indicates power to the carbon monoxide detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
- Event Memory records the last time carbon monoxide was detected or when the unit was last tested
Product information
Features & Specs
| Power Source | Battery Powered |
|---|---|
| Alarm | Audible |
User guide
| Operating Humidity | 10 to 95% relative humidity (RH), non-condensing |
|---|
Style
| Product Style | Frustration Free Packaging |
|---|---|
| Color | White |
Measurements
| Item Dimensions D x W x H | 1.65"D x 4.72"W x 2.83"H |
|---|---|
| Item Weight | 0.23 Pounds |
Warranty & Support
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Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
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Item details
| Brand | Kidde |
|---|---|
| Model Number | KN-COB-LP2 |
| Manufacturer | Kidde |
| UPC | 047871335091 |
| Customer Reviews | 4.74.7 out of 5 stars(36,339) 4.7 out of 5 stars |
| Best Sellers Rank |
|
| ASIN | B0DT1MGCKK |
| Item Type Name | Carbon Monoxide Detector |
| Built-In Media | AA Batteries |
| Item Height | 2.83 inches |
| Unit Count | 1.0 Count |
Top reviews from the United States
- J. G.Great for camper/rvBought this for the camper. Easy to setup. Can be mounted. Very loud during the testing. Seems well made and very light weight. Gave us peace of mind while camping.
- MJGreat ProductThis product is a fantastic find! It's reasonably priced, making it accessible for most budgets without compromising on quality. The product is exactly as described, and its usefulness cannot be overstated. I've found it to be incredibly practical and efficient in meeting my needs. The attention to detail is impressive, and the performance is on par with more expensive alternatives. If you're looking for something reliable, well-made, and at a fair price point, this is the perfect choice. Highly recommended!
- Mark MAs DescribedI used these to replace the one's I had which were 10 years old and they are the exact same unit I had, they are well made, easy to install and do the job
- Everyday ReviewsSimple, Reliable CO Alarm for Peace of MindSimple, Reliable CO Alarm for Peace of Mind
The Kidde battery-powered carbon monoxide detector is an easy and affordable way to add an extra layer of safety at home. I like that it runs on batteries, which makes it portable and flexible—you can mount it on a wall or just place it on a shelf without worrying about wiring. The test/reset button is straightforward, and the LED indicators give quick reassurance that it’s working.
It’s very lightweight but still feels solidly built, and installation was as simple as popping in the batteries. The low battery chirp is loud enough to notice, and the alarm itself is piercing, which is exactly what you want if it ever goes off in an emergency.
Because it’s battery-powered, you’ll need to stay on top of changing batteries regularly, but the trade-off is portability—you can move it between rooms or even take it on trips. For long-term setups, combining it with a hardwired or plug-in unit gives the best coverage.
Bottom line: A dependable, no-frills carbon monoxide alarm that’s easy to install and portable—an inexpensive safety essential for any home. - ewSimple but reliableReplaced previous unit which was exact model. That one lasted 10 years. Important to use correct batteries.
I set it on a shelf and change rooms on occasion. Worth the time - B17GGreat for travellingI like to detector with us when staying in hotels because you never know. It seems to work well and I like that it's battery powered. I hope it never goes off unless I'm testing it. Gives us peace of mind while in our room.
- Bo CarlsonExcellent Peace of Mind, Reliable, and Easy to UseThe Kidde Carbon Monoxide Detector is a must have for any home. Installation was quick and straightforward, and the unit feels well-built and dependable. I really appreciate the clear alerts and the easy-to-read display, which makes it simple to check CO levels at a glance. I highly recommend the Kidde Carbon Monoxide Detector to anyone looking to protect their home and family.
- John RinehartFintional detectorFintional detector.snd very dependable