EmailBest Reviewed
Carbon Monoxide Detectors
- Carbon monoxide detector with digital readout (battery powered) Kidde KN-COPP-B *Est. $40
- Plug-in CO detector with battery backup Kidde KN-COPP-3 *Est. $45
- Basic carbon monoxide detector Kidde KN-COB-B *Est. $25
- Combination alarm with voice warning. Kidde KN-COSM-IB *Est. $45
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Plug-in CO detector with battery backup
- Accurate
- Durable
- Electrical power with battery backup
- No low-battery indicator
- Reports of false alarms
We found the most reliable review of the Kidde KN-COPP-3 carbon monoxide detector in Consumer Reports magazine, which tests and rates numerous carbon monoxide and smoke detectors. USA Today magazine also recommends the Kidde in a brief article. Users give reviews at Amazon.com and PriceGrabber.
The well-reviewed Kidde KN-COPP-3 carbon monoxide detector runs on electricity, but also has a battery backup that will keep working during power outages. This unit features a digital display, peak-level memory and a test/reset button, but not a low-battery indicator. It's rated highly by experts, who say Kidde stands out for the accuracy of its detectors. We did read reports from a small percentage of owners about false alarms. This CO detector is also sold as the 900-0076. If you're good at replacing batteries regularly, you may be better off with the equally well-reviewed, battery-powered Kidde KN-COPP-B (*est. $40).
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Our Sources
1. ConsumerReports.orgDetails/Subscribe
In its Feb. 2008 report, Consumer Reports tests and rates 20 carbon monoxide detectors, including the Kidde KN-COPP-3.
Review: Buyers' Guide to Smoke and Carbon Monoxide Alarms, Editors of Consumer Reports, Feb. 2008
This review singles out the Kidde KN-COPP-3 as "highly recommended," although the author doesn't say why and doesn't offer any comparisons or ratings of other models.
Review: Silencing the Silent Killer -- What's New?, Editors of USA Today magazine, Mar. 2004
3. Amazon.com
Most of the 60-plus user reviews at Amazon.com for the Kidde KN-COPP-3 (also sold as the 900-0076) are positive, but we did read a number of reports of false alarms and battery drainage within a week. One owner reports that Kidde customer service told him that some units sold several years ago were defective. He says that Kidde replaced his, and he has not had battery problems since then.
Review: Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm, Contributors to Amazon.com
4. Indoor Environment Notebook
In this Q&A about carbon monoxide poisoning, Dr. Thad Godish of Ball State University recommends CO detectors with digital displays that store peak CO levels in memory. He says the Kidde 900-0076 has these features, is highly regarded and performs well in testing. He doesn't mention or rate any other models.
Review: Everything You Wanted to Know About Indoor Air Pollution and More, Thad Godish, Apr. 30, 2004
A handful of carbon monoxide detectors are reviewed here, and the Kidde 900-0076 (KN-COPP-3) is one of them. It receives mixed reviews from two owners who discuss several reasons why this model seems to use batteries rapidly. They speculate that it could be because it is plugged into an outlet that is being turned off by a light switch, or it may be that there was a product defect which has since been fixed by the company.
Review: Kidde Carbon Monoxide CO Gas Detector, Digital w/Battery Backup, Contributors to Pricegrabber.com
Carbon Monoxide Detectors Runners Up:
2 picks by top review sites.
Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm
 from Amazon.com New: $32.73 In Stock.
Average Customer Review:   |
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