Carbon Monoxide Detectors: Reviews

Reviews say Kidde makes the best carbon monoxide (CO) detectors, thanks to their accuracy, speed and durability. The Kidde KN-COPP-B is battery operated, so it will keep working even during a power outage, when many… people tend to use equipment such as space heaters that can generate CO. Because safety experts say that the best placement for a CO detector is high on a wall, this battery-operated model allows for that flexibility. It has an electrochemical sensor, continuous digital readout with large backlit display, peak-level memory (which records the highest danger level), low-battery indicator, a front-loading battery door and a five-year limited warranty. This model is also sold as the Kidde 900-0146.

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If you aren't the type who's diligent about checking and replacing batteries, you might prefer a plug-in CO detector. The highly rated Kidde KN-COPP-3 is electrically operated, but it has a battery backup that will keep… it working during power outages. It also has a digital display, peak-level memory and a test/reset button like the model above. While it does not have a low-battery indicator, it is rated very highly by expert reviewers. There is a five-year warranty. This model is also known as the Kidde 900-0076.

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Suitable for any household that requires basic CO detection, the Kidde KN-COB-B is recommended by reviewers for its easy installation and affordable price. The big difference between this and more expensive models is that… there's no digital readout, so you won't know the exact levels of carbon-monoxide gas in your air. The detector is battery operated with a snap-open cover for easy battery replacement. The unit has a five-year warranty. This model is also sold as the Kidde 9CO-5.

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This Kidde unit combines a CO and smoke alarm that features a voice warning system to announce whether a fire, carbon monoxide, or low battery is detected. Reviewers like the multiple features that eliminate the need to… purchase a separate smoke alarm, although some note that this model includes only an ionization smoke detector, which detects flames but not smoky fires. The Kidde KN-COSM-IB is a hardwired model with battery backup, and it can be connected to other models, so if one alarm sounds, the others will too. There is a five-year warranty. This model is also sold as the Kidde 900-0114.

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