Smoke alarm went on alone in the middle of the night?

Question

Smoke alarm went on at the middle of the night, and there was no smoke. Everyone was asleep. Everyone woke up when the smoke alarm went on on its own, after awhile it stopped. This has never ever happened before. Does this happen in rare occasions, why did it do that???

Answer 1

Check your battery! It might be going dead and that is why it went off incorrectly.  

Answer 2

My smoke alarm will do that periodically when the batteries get low. Ideally, you should change the batteries in them every few months as is. I am betting that the batteries are just getting low, and need replaced. One good thing is you know that the alarm works! Just put new batteries in it, and then see if this happens again. If so, maybe it's time for a new alarm?

Answer 3

Make sure it's not also a carbon monoxide or radon alarm!  Otherwise, might just be the low battery.

Answer 4

it probably needs new batteries you should check it