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Ei Electronics Ei204EN Carbon Monoxide Alarm review

£16.00 Typical price

Test score %

Reviewed

You can expect six years of service from the Ei Electronics EI204EN Carbon Monoxide Alarm before you need to replace it – but can it be trusted to alert you to the potentially deadly effects of a carbon monoxide during this time? Our test results reveal whether the Ei Electronics carbon monoxide detector can be relied upon to recognise and clearly warn you about a build-up of the poisonous gas.

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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 28 carbon monoxide detectors and found that there are 11 Don't Buys and 17 Best Buys.
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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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