Federal Signal Modulator II 8032B Westminster Chimes & Voice Chicago, IL 3/4/26 Outdoor Siren Test

Chicago O'Hare International Airport’s Siren Test in Illinois These Modulator 8032B’s at O'Hare Airport are tested on the First Tuesday & First Wednesday of the Month around 10am Sometimes these sirens would go off early before 10am and a little bit late after 10am I finally caught this siren going off right on time Also I apologize for the metal fence being in this whole video since parts of the parking lot was in the restricted area had to be very careful but anyways Enjoy this video