As riven1950 said it would be a good idea to check those smoke/co detectors. Your rig is a 2006 and most likely they have outlived there useful life if they haven't been changed.
What is needed is a dual chamber detector that will detect CO and smoke from a slow smoldering fire such as may start in a R/V because of electrical fires and fast burning smokeless fires.
After a lot of research.
This is what I found.
A Kidde KN-COSM-XTR-B
That seemed to be best suited for this kind of application.
Like This They now can be bought at Home Depot, also At Amazon.
Amazon I suggest you read all the info and make your decision on this but I replaced the ones in my Class C with this one.They are rated for 7 years
and most are only rated for 5,If your RV is older than 5 years old and they haven't been changed they are most likely no good. Mine needed to be replaced so this was a good deal for me.
Just a reminder,a first line of defense is always the best. Check those smoke detectors and replace them if needed,all have a date on them and how long they are good for. If they don't, toss them.
While it is important to know all of your emergency exits it is also
important to be warned early,especially if you are older or have mobility issues or have small children.
I hope that this helps,It is better to be safe than sorry and it is a small price to pay for security and peace of mind.
2006 TIOGA 26Q CHEVY 6.0 WORKHORSE VORTECFormer El Monte RV RentalRetired Teamster Local 692Buying A Rental Class C