The Siren is believed to be either a Federal Signal Model 5B, or a Federal Signal Model 7. Most sources prove it to be the Federal Signal Model 7. The panel box for the siren inside the station says that's it is a Model 7. The only reason why it is believed to possibly be a Federal Signal Model 5B is because most people who have an account of hearing the siren both say that the Model 5B sounds the same, which was described as a dying cow.