How do I test my smoke detector?

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Press and hold the test button on the smoke detector.

Answered by Dave, Electrical Safety Expert

Press and hold the test button on the smoke detector. It can take a few seconds to begin, but a loud, ear-piercing siren should emanate from the smoke detector while the button is pressed. If the sound is weak or nonexistent, replace your batteries or the detector where non-replaceable batteries are fitted.

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