SCVJeff wrote:
I know that there are two different classes of Co detectors: residential and RV,
Well.. NO, there are not.... I will give you the example of the CO detector in this house.
Original was an Atwood, RV brand,, half the owners manual said KIDDE not Attwood..
When it died of old age I got a KIDDIE. I found the following difference
Atwood said Attwood on it, Kidie says Kidie
Very slight difference in color, may be due to age
Atwood had an alarm status chart on the battery compartment cover, This explains that the alarm mens (Low Bat, System failure, GET OUT), Kidie did not have that.
Covers were, however, interchangable, so Kidie now has it.
Yes, they are THAT identical, parts from one fit the other 100%
So there is no difference, get whatever fits in the bracket so you do not need to drill new holes.