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Ei Electronics Ei3018 review

£55.00 Typical price

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Expert review

The mains-powered Ei Electronics Ei3018 carbon monoxide alarm is built to detect CO for five years and has a warranty to cover this. There is a backup rechargeable battery, which kicks in if there’s a power cut. The alarm can be used in a network of other Aico/Ei alarms, so that if one detects danger, they all sound. You’ll need the Ei3000MRF interlink module (£48) to do this, which also sends data to your smartphone regarding when it detects CO. We tested it back in 2019, so to find out how well this Ei Electronics mains-powered CO alarm detects the deadly gas, read on for our test results and verdict.

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Last checked by Which?

March 2022

First reviewed by Which?

December 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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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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