If you’re wanting one just for an exhaust fan, they’re fairly cheap ($42 from Grainger). The big-boy humidistats for AC units that use variable speed motors to run in a low speed, humidity control mode can be bit pricey though, yeah. But they’re not super common any ways.
https://en.wikipedia.org/wiki/Humidistat
If you’re wanting one just for an exhaust fan, they’re fairly cheap ($42 from Grainger). The big-boy humidistats for AC units that use variable speed motors to run in a low speed, humidity control mode can be bit pricey though, yeah. But they’re not super common any ways.