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Unbranded Carbon monoxide alarm 8 review

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Don't Buy this carbon monoxide (CO) alarm – it failed to sound in 27 of our carbon monoxide detection tests

This a Don’t Buy carbon monoxide alarm and it should be avoided. In our tests it failed to detect the deadly gas a worrying 27 times. It doubles as a smoke alarm and it was just as bad when we tested its smoke detection abilities.

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Expert review

This a Don’t Buy carbon monoxide alarm and it should be avoided. In our tests it failed to detect the deadly gas a worrying 27 times. It doubles as a <a href="https://www.which.co.uk/reviews/smoke-alarms/unbranded-smoke-alarm-in-blue-box">smoke alarm</a> and it was just as bad when we tested its smoke detection abilities. We bought it from a seller on eBay, but you’ll also find it listed on other similar online marketplaces. If you have one in your home, replace it with a well-known brand from the high street or a reputable online site.

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First reviewed by Which?

October 2019

Released

January 2019

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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Best Buys and Don't Buys
We have tested 24 carbon monoxide detectors and found that there are 10 Don't Buys and 14 Best Buys.
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