With permission granted from Magnox LTD, I was allowed to take an audio recording of this siren in action. The footage in the video is NOT of the Chapelcross siren, but is in fact a still image taken of Carlisle's similar siren. Chapelcross does NOT permit photography on the site under any circumstances.
Chapelcross tests its siren(s?) on the first Thursday of every month at 5:30 PM.
Recorded on 2.2.23