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You’ll need to replace the batteries in the Kidde Carbon Monoxide Alarm 7CO every two to three years, but in return it promises a decade of faithful service. So, is this 2016 carbon monoxide detector a worthwhile investment? We tested its ability to alert you to the presence of carbon monoxide in a series of exacting tests, and assessed the clarity of its alarm and installation instructions. Check our results to discover if this carbon monoxide detector has what it takes to be a Best Buy alarm.
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- Nov 2023Last checked by Which?
- Aug 2016First reviewed by Which?
- Jan 2016Released
