Chirping Alarm 2012 Itasca Suncruiser 37F

[Mtn Charlie]

I have a 2012 Itasca Suncruiser 37F, built on a Ford F-53 chassis. Today, when I went out to prepare for an upcoming trip, I heard a chirping alarm, one chirp at about 15 second intervals. Much like a smoke detector with a low battery, but I don't think it has a smoke detector. If it does, I can't find it. It isn't the propane alarm, because I disconnected it and still get the chirp. When it is connected, it has a constant green led. The refrigerator is off, so it isn't a loss of power alarm on that. It sounds loadest about 3 feet behind the drivers seat. Any ideas?

[Morich]

CO detector is standard! High and possibly in bedroom?
Battery operated and likely to have run down or hit the ten year mark?
Would come with fire and CO detector unless somebody has removed it!

Onwers manual on pages 2-3 and2-4 show fire and CO detectors and info.
https://www.winnebago.com/owners/own...r-manuals/2012
I've noticed I can't tell anything about sound directions in the RV! Maybe a couple different things to look for but I suspect the CO as fire alarms are too loud to sleep through!

[Mtn Charlie]

Thanks Morich! I feel like a complete idiot. I went out and stood 3 feet behind the drivers seat and looked straight up. Low and behold there was the smoke detector. Just needs a new 9 vold battery.
EDIT. I checked the 9 volt battery in the CO detector in the bedroom and it was bad also.

[Morich]

No big thing to miss a few points!
Progress usually comes in fits and jerks!
I usually try to walk into the end of the slide every time I go out there>>>>>