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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Combination alarm with voice warning.
- Combination smoke and CO detector
- Voice warning
- Connectable to other models
- Battery backup
- Doesn't detect smoky fires
Several sources review the Kidde KN-COSM-IB including Consumer Reports magazine, About.com, and ConsumerGuide.com. User reviews can be found at Amazon.com.
The Kidde KN-COSM-IB is an electrical carbon monoxide and smoke detector with battery backup that can connect to other monitors in your home; if one alarm sounds, the others will, too. The KN-COSM-IB includes a smoke detector, but it uses an ionization module that will detect flames but will not work as well with smoldering fires. What makes this detector unique is the voice warning system, which announces the type of emergency (fire, carbon monoxide or low battery). This unit also features battery backup, allowing it to function during a power outage. It is sometimes sold as the Kidde 900-0114. However, if you're looking for an affordable, basic carbon monoxide detector without the bells and whistles, the Kidde KN-COB-B (*est. $25) should suit your needs.
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Our Sources
1. ConsumerReports.orgDetails/Subscribe
In its most recent report, Consumer Reports tests and rates numerous carbon monoxide detectors, including the Kidde KN-COSM-IB.
Review: Buyers' Guide to Smoke and Carbon Monoxide Alarms, Editors of Consumer Reports, Feb. 2008
2. About.com
Rod Brouhard, About.com's guide to first aid, points out some key features of the Kidde KN-COSM-IB along with other carbon monoxide monitors. (Note: ConsumerSearch is owned by About.com, but the two don't share an editorial affiliation.)
Review: Buying Carbon Monoxide Detectors, Rod Brouhard, Sept. 16, 2007
3. Amazon.com
More than 30 owners post reviews of the Kidde KN-COSM-IB, giving it very high average ratings overall. A few report that the monitor gave false alarms.
Review: Kidde KN-COSM-IB Hardwire Combination Carbon Monoxide and Smoke Alarm, Contributors to Amazon.com
Editors of ConsumerGuide.com give the Kidde KN-COSM-IB a rating of four on a five-point scale and award it a Best Buy designation. The review is based on value, performance, ease of use and features.
Review: Kidde Nighthawk AC Combination Smoke & CO Alarm KN-COSM-IB 900-0114, Editors of ConsumerGuide.com, July 15, 2004
This single-page site rates nearly 200 models of carbon monoxide, heat and smoke detectors based on life-saving features. No detectors receive a perfect score of 12. Based on the editor's scoring, the top ranked models include the Kidde Combo 900-0114/KN-COSM-IB.
Review: Alarm Specification Comparison, Editors of Alarmspecs.com, Dec. 1, 2008
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.
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