Here's my new Darley Champion "video." It's actually a still shot because the camera I had at that time could not focus any tighter. Since the siren is in the middle of a large, flat roof (and there always seem to be fire personnel standing around outside), one has to get a block away from the station to see it. This siren has an amazing range, as noted in the video notes, and can routinely be heard three miles away under most conditions. Along with the STL-10, these were some of the best-sounding single-tone sirens made.
http://www.youtube.com/watch?v=lkiNNQjfalU