The Water Sensor could be a winner if you could put it in a case that looks like a frog.
Ok woot, you have some splanin’ to do…
Listed under the “features” for the bathroom exhaust fans, we have this:
Hoover 7121-01 Bath Exhaust Fan, White Finish
*50 CFM fan speed circulates air and helps reduce moisture in bathroom
*Ideal for bathrooms up to 50 square feet
and
Hoover 7122-01 Bath Exhaust Fan with Light, White Finish
*50 CFM fan speed circulates air and helps reduce moisture in bathroom
*Ideal for bathrooms up to 80 square feet
However… listed under the “specs” section, we have this:
Hoover 7121-01 Bath Exhaust Fan, White Finish - Specifications
CFM: 80 CFM
and
Hoover 7122-01 Bath Exhaust Fan with Light, White Finish - Specifications
CFM: 50 CFM
So, ummm, which is correct CFM for each fan, woot? Your descriptions and specs are all over the place.
A quick googling shows that both of these are 50CFM - not official by any means - YMMV.