Interlinked alarms all sound at the same time when danger is detected. You can buy an excellent Best Buy smoke alarm for under £20, and we've seen alarms that have failed our tests that cost much more.īuying a pricier model may mean you're getting extra features, such as a 10-year sealed battery, an emergency light or an alarm that can be linked wirelessly to others. Our tests of smoke alarms show that you don't have to spend a fortune to get great value. How much do you need to spend to buy a good smoke alarm?
U se our smoke alarm reviews to discover the models that passed stringent Which? tests.
