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Unbranded CO & smoke alarm review

Product alert

Don't Buy this smoke alarm – it failed to detect smoke in all eight of our fire tests

When set the task of detecting smoke from fires fuelled by wood, plastics, cotton and solvents, this unbranded and unreliable product failed to sound in all of our fire tests.

It’s one of the most unresponsive and potentially dangerous alarms we’ve seen and in our tests, we found it unable to reliably detect smoke and that’s why we’ve made it a Don’t Buy.

Further reading

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£5.00 Typical price

Test score %

Key features
  • Smoke alarm (battery powered)
  • Optical smoke alarm
Reviewed

We bought this alarm from Wish and in our tests it failed to sound in eight separate smoke detection tests. We’ve made it a Don’t Buy to warn you about the danger of having an alarm like this one in your home. In our tests it wasn’t simply a matter of this alarm sounding a little later than most, it simply didn’t detect smoke and the consequences of having a smoke alarm like this one in your home when there’s a fire don’t bear thinking about. Along with a handful of other incredibly dangerous smoke alarms we’ve tested recently, this model is one of the most worrying products we’ve seen on sale in the UK. It claims to also be able to detect carbon monoxide but we have only tested it as a smoke alarm.

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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 smoke alarms and found that there are 7 Don't Buys and 4 Best Buys.
Range of Smoke alarm scores
  1. 0%
    Lowest score
  2. 42%
    Average score
  3. 93%
    Highest score
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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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