AKA those old air compressor sirens from Germany. I really like the sound of these, you heard them a lot in videos from Haifa in 2006 during the 2006 Lebanon War. This video features a full cycle of attack, start to finish. Unfortunately the video is very grainy, but the siren is seen on the right side.
I've also found the location of it on google maps!
https://goo.gl/maps/kgghN
Video:
https://www.youtube.com/watch?v=L244xwE4qC0