Normally, an autostart system looks at 2 things, inside temp and coach battery voltage. If either one hits a predetermined threshold, the generator will start.
2006 Damon Daybreak 3276 35'with 5 Star Tuner. 3 200 Amp Lithium batteries and 2000 watt PSW inverter/charger. 2013 Elantra on a Master Tow dolly.