Don’t know if these pictures worked. Wondering what they are. The square white one was attached to the soffit - there were 4 of them. The black item was on the side of the garage - 2 of these. These were on a condo (2 residences side by side)if that makes any difference.
Thanks Mark. The bathrooms on this home exhausted through the side of the attic (gable end). Plus there are 4 or these things faily close together and the 2 bathrooms are on the other side of the house.
The black meter reader is new to me. Course, I live in the country and must not get out enough.
Thanks again
Tim