It seems like having the fan on a motion sensor would be the best, otherwise the we all forget to turn it on.
I would like to use a very small motion sensor that I would tuck into the shower niche (this area stays dry) and have it turn on power to the 120V fan. Does anyone have a great idea for the specific motion sensor, and how it could switch on power to the fan?
I use Insteon devices, including motion sensors. If the fan is on a switch, replace it with a smart switch and add a motion sensor to turn on the switch. Insteon devices can do this. You may be able to find a switch with a built-in motion sensor.
Some additional details are that I don't want the whole bathroom covered by the motion sensor, just the shower. There is a small niche in the shower (stays dry) where I want to tuck the motion sensor. So the motion sensor needs to be very small so the niche wall hides it from areas outside the shower.
I like that this can work on a battery - saves me some difficult drilling for wires.
I may order one since it seems like a good chance of working - unless you may have another thought.
Sounds as if a separate motion sensor is the way to go, then.
I also don't want to suggest that Insteon devices are the only option, either. These are just the ones I use. Having said that, they have the seemingly-unique ability to work and link without having a dedicated controller, and are not dependent on the cloud.