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🏠 Stay safe, stay plugged in — your silent guardian against invisible danger!
The Kidde Carbon Monoxide Detector combines cutting-edge electrochemical sensor technology with user-friendly plug-in design and battery backup, delivering reliable 24/7 protection. Featuring an 85-decibel alarm, digital peak memory, and a convenient Test-Hush button, it ensures your home is alerted promptly to dangerous CO levels. UL certified and backed by a 10-year warranty, this compact device is a must-have for every modern household seeking effortless, long-lasting safety.



















| ASIN | B00M48BH30 |
| Alarm | Audible |
| Best Sellers Rank | #20,013 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #30 in Carbon Monoxide Detectors |
| Brand | Kidde |
| Built-In Media | User manual, two AA batteries |
| Color | White |
| Customer Reviews | 4.7 out of 5 stars 35,746 Reviews |
| Global Trade Identification Number | 00047871257591 |
| Item Dimensions D x W x H | 1.5"D x 2.75"W x 4.05"H |
| Item Type Name | Carbon Monoxide Detector |
| Item Weight | 18 Grams |
| Manufacturer | Kidde Safety |
| Mfr Part Number | 900-0263 |
| Model Number | KN-COB-DP2 |
| Number of Items | 1 |
| Operating Humidity | 10% to 95% relative humidity, non-condensing |
| Power Source | Plug In |
| Product Dimensions | 1.5"D x 2.75"W x 4.05"H |
| Product Style | Clamshell Packaging |
| Sensor Type | Electrochemical |
| Style | Clamshell Packaging |
| UPC | 047871257591 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 37.8 Degrees Celsius |
L**D
The ideal Carbon Monoxide Alarm
This is just the ideal Kidde Carbon Monoxide Alarm for me – simple, reliable, and affordable peace of mind. Installation could not have been simpler: plug it into a standard outlet, and you're ready to go. I prefer the slim design greatly; it does not take up the second outlet, so I can still use that area. Why I’m content with it: Easy to set up: No special tools or difficult setup — plug and play. Definitive signals: It features an easy-to-read digital display that can give confidence that it’s working properly. Loud Alarm: It is loud, as I have tried out and is able to wake me up or gain my attention quickly. Trustworthy brand: Kidde is a brand that can be trusted, and this smoke detector is robustly built. All in all, it gives me actual peace of mind that it is protecting my home. I'm likely to buy another soon for upstairs — would highly recommend!
M**E
Reliable Detector With One Important Thing to Know
This carbon monoxide detector is simple, compact, and very easy to use. There isn’t much of a display—just an LED indicator—but it still does its job well and gives peace of mind once it’s plugged in. The alert tones are loud enough to hear from another room, which is great for safety. One thing other customers should definitely know: the low-battery/alert chirp sounds exactly like a standard fire alarm. When ours started chirping, we went around the house checking every single smoke detector before realizing it was actually this device. So if you hear a mystery chirp, make sure to check this unit too. Overall, it’s functional, straightforward, and provides solid leak detection. Just keep that identical chirp in mind and you’ll be all set. Highly recommend for an easy layer of home safety.
S**A
Second time purchasing
I’ve had this exact carbon monoxide detector in my home for the past 10 years, and it just recently gave me a notification that its life expectancy had expired. After a full decade of flawless performance, I didn’t even hesitate—I went out and bought the exact same brand again. Installation is super easy. It plugs right into any standard outlet, and I really appreciate that it also includes a battery backup. That gives me extra peace of mind knowing it’ll keep working even if the power goes out. What I value most is how reliable it’s been. It clearly notifies you when there’s an issue or when the unit needs replacing—no guessing games or worrying if it’s still functioning. It’s one of those quiet protectors in the background that just does its job.
M**T
Don't Tamper With The "Tamper Resist" Feature
Nice price for a good looking CO1 alarm. Nicely packed in plastic hard shell that had easy open feature that did not required a knife to open. I had to try the "tamper resist" switch and turned it on, then discovered I could not turn it off. The instructions in the owners manual were not helpful so I emailed Kidde for help. No reply after 24 hours. The unit installed easily and having the tamper resist on may be a good thing. If the alarm gets booted off the wall the alarm should sound to alert us and then I plug it back in. OK for now. Not impressed with quality control, instructions or customer service. Just keep your hands off the tamper resist.
L**R
Kidder trust quality
It's a Kidde works great, or as far as I know, really prefer not to have it go off but works in testing
A**R
Plugs in and is ready
This simple CO detector is so easy to install; just plug it into an electrical outlet. It does not block the second outlet if you plug it into the lower outlet, and the plug can be rotated so it can be used in horizontal or vertical outlets. It comes with 2 AA batteries (for backup in case the power goes off) protected by a plastic strip so they don't run down before it's sold. Just slide the battery cover off and remove the thin plastic strip, slide the cover back on, plug it in, and press the test/reset button. The alarm sound is four loud tones followed by a pause and then four more. The instructions say don't install it in a bathroom or near a heat vent or heat-producing appliance. Mine is in a wall outlet in my bedroom. With a natural gas forced air furnace and a gas water heater I decided this was worth the low cost for carbon monoxide protection. Like most people, I have separate smoke detectors but they don't check for carbon monoxide, which is odorless and colorless.
J**Y
Happy to have them
I bought two of these for my house for peace of mind. Very easy to use, just plug it into an available wall plug and you are detecting. No wiring involved. I change the battery out every year, so I'm not sure about the batterylife. I'm happy they're in my house, protecting the family.
L**.
Portable for travel
We got these for travel and have loved the portability of these carbon monoxide detectors. They are easy to use and the best value that we could find. I ended up purchasing two more sets for my kids. We just keep in our travel bags and are ready to use. We trust the functionality and accuracy to detect carbon monoxide leaks.
R**E
Très bonne qualité
Bien conçu et prix resonnable
J**E
Good instruction
Installed in living room next to propane fireplace
W**.
Good product
Good protection
N**S
Works as advertised no issues.
Works as advertised no issues.
Trustpilot
3 days ago
2 weeks ago