I was considering adding Magnum's AGS module to our 2020 Tiffin and it also requires the remote control panel, together about $475. As many of you already know, it monitor temperature and battery level and will start the genset if either reach a set point. Since we never dry camp and are always plugged into shore power, an AGS that simply responds to loss of shore power would be an adequate solution for us. So while searching for one I had seen a few years ago, I discovered this product: https://rvautomations.com/
Sounds simple enough plus it provides text alerts for $10/month which is a bonus. Anyone here with experience with it?