Recently I have been scrolling through the civil defence topic in my YouTube feed and found this (Below) and heard the High Pitched Whoop Tone and that reminded me of Barrington's 612 when it used to use its high pitch whoop tone. But back to the topic I assumed they could either be a Whelen or Federal signal omnidirectional siren in the video, it also appears that siren didn't activate. If you can provide answers to what sirens to that system and where that system is located feel free to drop some intel below.
https://www.youtube.com/watch?v=D1eKkJwU9KU