Federal Signal STH-10
The Federal Signal STH-10 is a discontinued omnidirectional siren produced by Federal Signal over a span of 50 years.[1]
References
[edit]- ^ "2-5-SD10-STH10-STL10-255A154F.pdf" (PDF). Civil Defense Museum. Retrieved October 1, 2024.
 | This industry-related article is a stub. You can help Wikipedia by expanding it. |