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Kidde 2SFW review

£22.00 Typical price

Test score %

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

The Kidde 2SFW mains-powered optical smoke alarm can be fitted as a standalone alarm or used as part of a wireless network of alarms. There are two buttons, one to test it – we recommend you do this weekly – and a hush button to silence it after sounding. A 9V battery will provide back-up power if there’s a power cut. And it comes with a warranty from the manufacturer covering its six-year lifetime. But what’s it like at detecting smoke and sounding the alarm? We tested it to find out. Read on to learn about how this Kidde mains-powered smoke alarm fared in our tough lab tests.

Included in our expert review
  • Pros and cons
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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.

Find out how we test smoke alarms
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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
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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You can cancel at any time

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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