http://www.wspa.com/story/22194072/13-o ... uring-test
Apparently, the siren system is going to be phased out in the next year or so.
It is comprised of several Thunderbolt 1003s, some 1000(T)s, a Whelen, and a few other sirens.
Map: http://goo.gl/maps/qswbD
I'll ask around if they will be removed, and if I can get any of them and possibly sell them here.
What a shame, a great system being phased out in favor of weather radios and such.