Broan model 509N exhaust fan which mounts to the inside of a buildings and exhausts directly through the wall to the outside. Designed to fit into any wall from 4 1/2 to 9 1/2 inches thick.
Rated for 180 cubic ft per minute at 6.5 sones sound level.
Very versatile  fan, could be installed in kitchen, bath or laundry rooms, in a workshop or garage.
Would  work well with any type of switching device: on/off, timed, temperature or moisture sensing.
Easy to install, new in box.