ACA Hurricane Siren.

Credit to Joe Molter for the original video. I had this saved on my old computer for many years & decided to upload it for everyone to enjoy.
ACA Hurricane siren in Darien, IL during a monthly test. This siren was installed around 1978 and removed from service in 2010 after the blower motor burnt out. It was auctioned on eBay and Matt Ullman of Florida won it. Siren was not fully restored and was later parted out.
ACA Hurricane, not the most reliable siren but one of the more interesting sirens out there.