As noted in this question, we sometimes get a message in the close vote review queue that:
However, there is no "Vote to Close" system option stating:
This question does not appear to be about home improvement within the scope defined in the help center.
Since we already have a "Needs details or clarity" close reason on the main "Why should this question be closed" page:
I would suggest that we replace the "Not enough information" on the "community specific" selection:
With the "not in scope" message noted above.
Piggy-backing off of Machavity's answer, we may want to change the verbiage in the "Why should this question be closed?" box by taking the text from the close option I suggested removing, so that it reads:
Needs details or clarity
Not enough information was provided to answer this question accurately. Please include the make and model of all devices and equipment, photos, diagrams, drawings, and any other information that might help people provide an accurate answer.
Then change that option to contain the fairly boilerplate "not within scope" close option found on many other sites within SE:
Not suitable for this site: This question does not appear to be about home improvement within the scope defined in the help center.
As an update, other sites have a "not about as defined in the help center" close reason. For example, here's the message on [woodworking.se]:
It seems perfectly reasonable to have a similar close reason here.