propane/co/fire/smoke detector

I buy my fire/carbon monoxide detectors at Big Box stores. I suggest buying a carbon monoxide detector with digital readout - the other ones are like the idiot lights in a car which always leaves you wondering how serious the problem is. I move our carbon monoxide detector into the stick house when the RV is stored during winter - does double duty. I am unsure whether you can find a propane detector that runs on std double A batteries - be interested to see if others have found one.

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 and talking to Kidde, they assured me that this one would work in a home and also A RV,there is no difference.

This is what I found.
A Kidde KN-COSM-XTR-BA Nighthawk
That seemed to be best suited for this kind of application.

Like This

They now can be bought at Home Depot, also At Amazon.

Home Depot

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 10 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, I had a hard wired one and I chucked it for the battery powered ones, they can be checked before each trip by pushing the test button in the center of the unit.

The rv OEM units is also an LP detector. Does the portable one you plan to buy also incl. LP ? The below link explains and offers models to choose from. ( sorry, the models are not from Victoria's Secret )

http://www.trailerlife.com/trailer-how-to/trailer-tech/proper-selection-and-maintenance-of-smoke-and-carbon-monoxide-detectors-are-critical-for-safe-rv-living/

thanks guys. just to clarify I intend to rip out the wired one in the camper and replace all. I don't mind putting 2 or 3 units as long as im covered for co lp and fire not worth poisoning my family to save a few bucks