They made something similar many years ago. I canít remember exactly what is what called but, I installed it on my Onan diesel generator in my 2001 Holiday Rambler Ambassador. That particular model did not have auto start for temperatures however, after testing in hot weather by removing power from the coach I found the generator would start long before unsafe temperatures in the coach. I was very pleased with the performance and it was still on the coach when I traded it in several years ago.
This unit sounds much nicer and, has the wireless temperature sensor.
Paul, Cathy and Chocolate Lab, RIO
2018 Newmar Dutch Star 4362 (Spartan)
2012 Ford F-150