So as not to hijack another thread I thought I'd open this one.
Some time ago when we had a motorhome and were using it in cold weather, Boise ID in January
, I needed to supplement the heat in my tanks/utilities compartment. I did so using a clamp on trouble light. We had a home digital weather station with a remote temp sensor. I just set it in the compartment and it was very easy to monitor. No muss no fuss. Some of those weather stations come with the ability to monitor more than one location. Actually was quite handy.
Just thought I'd put it out there. It's almost too late for this season but maybe will be useful next year?