Roy,
Thanks for posting. I did catch this comment of one person who reviewed it. While it may not be a show stopper, it might alter how you mount the unit, perhaps recessed a bit in the cabinet. This would be ideal if you could extend the sensor wiring and put it in the top of the cabinet above the receiver.
"The temp sensor is attached to the back of the fan, so when installed in an enclosure for an exhaust, the sensor is on the outside!?! I had to return it and get something else."
Later Ed