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Cavius 2001-033 review

£23.00 Typical price

Test scoreShow Context

Key features
  • Smoke alarm
  • Battery only
  • Optical smoke alarm
Expert review

The Cavius 2001-033 smoke alarm is tiny at just 4cm in diameter, but it’s designed to do exactly the same job as larger alarms. It’s powered by a replaceable CR2 battery, the kind you might use in a camera, and it uses photo-electric sensors to tell you when there’s smoke in your home. It can't be linked to other alarms, so it won't be suitable for homes in Scotland when the law changes in February 2022. Based on the technology it uses to detect smoke, it would be best to place it in a bedroom, living room, hall or landing. It comes with a two-year warranty. But what’s this compact smoke alarm like at detecting smoke? To find out, we tested it. Read on for our verdict and fire test results for this Cavius battery-powered smoke alarm.

What's included:
  • Pros and cons
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Last checked by Which?

December 2021

First reviewed by Which?

April 2020

Released

January 2020

Test results
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Best Buys and Don't Buys
We have tested 42 smoke alarms and found that there are 9 Don't Buys and 8 Best Buys.
Range of Smoke alarm scores
  1. 0%
    Lowest score
  2. 41%
    Average score
  3. 93%
    Highest score
We'll show you where this model sits on the scale so that you can see how it compares to smoke alarms we've tested
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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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