The 5 button CCC wall tstat. They are ALL the same. As to Auto Genstart and Heat Pumps and other features, THAT is controlled by other control boards in the RV. But, the only thing the 5 button does is respond to the existing various Dometic control boards and THOSE boards tell the tstat what they do. You buy a new 5 button and then do a reset so it will download the various features of your existing AC/HP control boards. You CANNOT use the current 12 button CCC programmable tstat. The 12 button will not respond to your existing control boards. Doug
I just clicked your link. The list of so called features is VERY misleading. Yes, the 5 button has the capability, but ONLY if the other features and control boards are installed on the RV for those features.