Anyone know what this is? On ceiling & beeping

[empiper]

Anyone know what this is?  It is beeping every 2 minutes in the skippers quarters on our 2016 Prestige 550.  Im assuming it is some sort of detector or something, but no label on it and cant seem to take it apart to replace a battery or anything.

Any help on what it is and how to get the beeping to stop would be greatly appreciated!

Thanks!

[Tafika II]

Smoke detectors....see website First Alert...First Alert

[MalcolmP]

So much for a 10 year battery life then... doesn't look replaceable either.

[whiteswan]

Yes, there is a battery in the back of the unit, just unscrew from the base.

[empiper]

Thanks so much Guys.  I was initially afraid to pull or twist to hard on it in the fear I would rip it from the ceiling.  I tried again and the whole unit came off, it was indeed a first alert self contained smoke detector...battery just needed to be replaced.

Thanks again, just wanted to check before possibly ripping the ceiling... ;-)