Are there smoke alarms rated for unfinished attic?

[bagarow@xxxxxxxxx]

Hi

I have a 3 story house in Raleigh, NC. THe 3rd floor is unfinished
attic space with a regular staircase walkup i.e parts of that attic
can be finished to give us an extra room with bath and closet.

Currently there is an outlet installed to add a smoke alarm. The
outlet seems to connected to other smoke alarms in the finished space
of the house. I was thinking of adding additional smoke alarm there to
get an alarm if a lightning strike caused fire in the attic.

I did call the smoke alarm manufacturer - Firex - but they said they
did not have any smoke alarms rated for attic space use.

Are there smoke alarms rated for the attic? I would like any smoke or
fire in the attic to trigger the other smoke alarms in the house.

Are there alternate solutions ?

Thanks
Bob