If it keeps working, this is exactly what I'd hoped for.
(Ghetto remote temperature monitoring: point a webcam at a thermometer. The outside temperature usually reads high in the afternoon, it probably was only about 85 or so.)
Edit: here's the forecast for the next seven days:
It seems like my purchase has been fully justified. If it actually happens like that, I may have to try the double-barrelled option starting on Sunday.