Recorded with my real Federal signal unitrol Omega 90 siren and 8001 controller. Used a SM57 Shure microphone into a Federal signal AS124 speaker. This version has reverb effects and been personally edited for a full ultra realistic sound.
Check out my newer one if you want a more raw sounding crisp version here:
Included:
Vehicles.oac
Raw Tones
Instructions
DEMO VIDEO 1:
DEMO VIDEO 2:
My Siren Used For The Recording:
What's New in Version 3.1
Released
3.1: *Added a ULTRA Hi-Lo version as well as a few more priority sweep variation with tones found by opening the Unitrol Omega 90 and flipping some DIP switches.
To update my older upload of this I made a reverberated version from my studio recorded IRL Unitrol omega 90 siren. Adding reverb will give that siren sound that gives the effect of it bouncing off of building and being in a wide open space, i.e. How it sounds in the heli hanger. If you want a clean straight recorded version check out my newer upload below.
Unedited Version:

