Lake Bluff, IL

Lake Bluff, IL - AF timer & FS&S Thunderbolt 1003 - Siren runs Hi-Lo on the 4th of July usually at 10 AM for the parade, and serves as backup for if the 2001s die. AF timer photo taken 5/4/2020, lower quality 1003 photo taken sometime around 2017(?), higher quality photos taken 7/4/21. Copyright Christopher Aylward

(5) FS Thunderbolt 1003 - HI-LO - Lake Bluff, IL - YouTube