The Siren Board

Kenton, Ohio: https://www.google.com/maps/@40.6451901 ... 384!8i8192

There are some in the Dayton area, as well

There are quite a few scattered throughout Texarkana, Arkansas, including one at Texarkana AR FD 3, one by Northern Hills Baptist Church, and one on the north side of Texarkana High School that indirectly replaced a Thunderbolt. Benton Louisiana also has a 508.