Today i went to the Elkhart Lake Fire Department to record the Sentry 15V2T. This siren tests with the rest of the Sheboygan county system every other Wednesday at 11:00 am. Today I had my scanner on hand encase there were any calls in the area, and to my surprise they active the sirens on fire primary (154.41500) witch I did not know so now I will bring the scanner to siren tests!
https://www.youtube.com/watch?v=3JNH-XLN62Y