Nit wrote
Rod Speed wrote
Bob wrote
Rod Speed wrote
What does work (but is expensive) is a solar powered vent
mounted on top of a 12" long piece of 6" ID PVC pipe
https://www.amazon.com/gp/product/B07LG4SSZH
That isnt very accurate at night.
Solar radiation is not a factor at night, numbnutz.
But lack of movement of the air is, ****wit.
Particularly when its all iced up in a heavy frost etc.
I can tolerate a degree error, nitwit.
You get a lot more than a degree error in that situation, stupid.