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🚨 Stay Ahead of Danger with Kidde’s Smart CO Detector — Because Safety Can’t Wait!
The Kidde Carbon Monoxide Detector (model KN-COPP-B-LPM) is a portable, battery-powered CO alarm featuring electrochemical sensor technology for accurate detection. It offers easy installation without wiring, a clear digital display updating CO levels every 15 seconds, and an 85-decibel alarm with LED indicators for immediate alerts. Peak level memory tracks the highest CO concentration detected, while a test/reset button and low battery indicator ensure reliable operation. UL-certified and backed by a 10-year limited warranty, this compact device delivers trusted, continuous protection even during power failures.

















| ASIN | B004Y6V5CI |
| Alarm | Audible |
| Best Sellers Rank | #384 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Carbon Monoxide Detectors |
| Brand | Kidde |
| Built-In Media | Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-Copp-B-LPM |
| Color | Detector |
| Customer Reviews | 4.7 out of 5 stars 19,623 Reviews |
| Global Trade Identification Number | 00047871088737 |
| Item Dimensions D x W x H | 1.5"D x 4.5"W x 2.75"H |
| Item Weight | 9.28 ounces |
| Manufacturer | Kidde Safety |
| Manufacturer Warranty Description | 10 Year Limited |
| Model Number | KN-COPP-B-LPM |
| Operating Humidity | 5% to 95% relative humidity, non-condensing |
| Power Source | Battery Powered |
| Product Dimensions | 1.5"D x 4.5"W x 2.75"H |
| Product Style | 3rd Edition |
| Sensor Type | Electrochemical |
| Style | 3rd Edition |
| UPC | 785983912532 716080045267 047871088737 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 37.8 Degrees Celsius |
J**M
It’s UL-certified, so I know it meets safety standards
I purchased this kidde co detector for our car or when we travel. I got this brand coz it’s UL-certified, so I know it meets safety standards and has been properly tested that alone gives me confidence it’s reliable. Setup was easy since it runs on AA batteries, no wiring or complicated installation required. The LED indicators make it simple to check status at a glance, and the test/reset button works smoothly. It also says there will be low-battery alert, so it won’t quietly stop working without me knowing. The portable size is another bonus it’s easy to move if I want coverage in other places, or even take it along when traveling. For anyone looking for a trusted, approved, and low-maintenance CO alarm, this one really covers the essentials. You have to do research before buying
A**D
Peace of Mind in a Compact, Reliable Device
The Kidde Carbon Monoxide Detector is one of those small investments that delivers huge peace of mind. After installing it in my home, I immediately felt more secure knowing that my family is protected from something as serious—and silent—as carbon monoxide exposure. Setup was incredibly easy. It took just a few minutes to install, and the instructions were clear and straightforward. The digital display is a nice touch—it gives real-time CO levels, which adds an extra layer of reassurance beyond just an alarm. What really stands out is its reliability and thoughtful design. It has a clear, loud alert that’s hard to miss, and the test/reset button works without a hitch. I also appreciate that it’s battery-operated with a backup option, so it continues working even during power outages. In a world where safety often gets overlooked until it’s too late, this detector provides consistent, quiet protection you can depend on. If you’re looking for an easy-to-use, durable, and accurate carbon monoxide detector, Kidde is a brand you can trust—and this unit proves it. Highly recommended for any home, apartment, or even RV. It’s a small device that could make a life-saving difference.
O**R
Fantastic and reliable
A few years after buying one of these, it started chirping. Turns out that we had a furnace issue. It's quite possible that it saved my family. Outstanding quality that you can put out and forget.
H**Y
Easy to install
Appears to function as promised.
E**R
Inexpensive and quick to alert.
We had a CO alarm go off in our house while running a generator outside but it did not have a display so we could not tell how high the concentration was. I ordered this and a couple of other CO monitors from Amazon and compared them. The 3 monitors tested were: 1) AS8700A handheld - designed for house inspection, not for continuous monitoring - range 0-1000ppm, 1ppm resolution - can display peak level since last reset - tests continuously, alerts within 5 seconds - adjustable alert level preset to 24ppm - measures ambient temperature - I paid $57 but it can now be found on Amazon for $35 - 3 year lifespan - runs on 3 AAA batteries 2) Kidde KN-COPP-B-LPM - continuous monitoring - stands upright or can be wall mounted - range 30-1000 ppm - can display peak level since last reset - tests every 15 seconds - alerts within 60 to 240 minutes for 70ppm, 10 to 50 minutes for 150ppm, 4 to 15 minutes for 400ppm - $22 - 7 year lifespan, chirps after 7.5 years to remind you to replace it - runs on 3 AA batteries for approximately 2 years 3) X-Sense CO03B - continuous monitoring - wall or ceiling mount - range 30-300ppm, good enough since you should leave the area immediately for levels over 200ppm - no peak level feature - response time is 0-3 minutes for 300ppm - $26 - 10 year lifespan, chirps after 10 years to remind you to replace it - runs on one 9v battery for 3 to 5 years For testing, I filled a garbage bag with car exhaust and placed all monitors in the bag. - The handheld alerted in 5 seconds and read over-range. It - The Kidde alerted after 20 seconds and read 823 ppm - The X-Sense did not alert during the first 30 second test and read 0ppm. I placed it back in the bag for 30 more seconds and it alerted and read it's maximum 300ppm. All 3 worked well. The handheld is best for verifying detections on the other monitors and testing while walking through the house since it is instant read and not designed for continuous monitoring. I placed the Kidde downstairs since I wanted one to place on a shelf for easy access. Since the X-Sense has the longest lifespan and longest battery life, I ceiling mounted it upstairs.
S**A
Great detector
Easy to read, easy to hang on wall and portable, battery life detector let's you know when battery is low and doesn't die silently. Shows reading of ppm level before its too late.
R**E
Carbon monoxide detector
Quality and price good
P**E
Carbon monoxide detector for home or rv camper get it to keep your family safe.
My old carbon monoxide detector finally died and this is the exact one that fits the slot in our rv camper. Quality is great compared to the 10 year old one I replaced. This is a must to have in an rv to keep you or your family safe. Its easy to use too.
Trustpilot
2 weeks ago
1 month ago