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FireAngel CO-9D review

£18.00 Typical price

Test score %

Reviewed

The FireAngel CO-9D Carbon Monoxide Alarm has a sealed battery, which means you’ll never have to buy replacements during its seven-year lifetime. It sounds like a convenient buy, but does it deliver where it really matters? To find out if you can trust this carbon monoxide detector when you need it most, we tested its reactions to different levels of carbon monoxide in a series of stringent safety tests.

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Test results

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

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We have tested 21 carbon monoxide detectors and found that there are 4 Don't Buys and 17 Best Buys.
Range of Carbon monoxide detector scores
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Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

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