First Alert SA700 Long Life No Nuisance Smoke Alarm review
Test scoreShow Context
- Smoke alarm
- Battery only
- Optical smoke alarm
The First Alert SA700 Long Life No Nuisance smoke alarm comes with a 10-year sealed battery, so you won’t need to replace the batteries for this alarm’s lifetime. It can't be linked to other smoke and heat alarms, so this means that it won't be suitable for homes in Scotland when the law changes in 2022. It comes with a 'hush' button to use for weekly testing, but how good is it at detecting smoke in an emergency? To find out, we tested it. Keep reading for our verdict, fire test results and the test score for this First Alert smoke alarm.
What's included:- Pros and cons
Last checked by Which?
December 2021
First reviewed by Which?
July 2013
Technical specifications
The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.
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- 0%Lowest score
- 41%Average score
- 93%Highest score
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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