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First Alert SA720 Safe & Sound Smoke alarm with Escape Light review

£15.00 Typical price

Test score %

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

The First Alert SA720 Safe & Sound Smoke Alarm with scape Light Long Life No Nuisance smoke alarm comes with a hush button to use for weekly testing and an escape light to show the way in an emergency. But how good is it at detecting smoke? To get to the bottom of this, we took it to our test lab, so read on for our full review and to find out how well this First Alert smoke alarm got on.

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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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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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
Try Which? for £1
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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