Luftschutzsirene.de

Firstly a NEVA55 recorded by me: http://www.youtube.com/watch?v=Voj1KWdbwZ4

And another video: http://www.youtube.com/watch?v=s5Gxs-KRL1o I need your help here, is that a Siemens sounding?

Hello Orestis!
Thanks for your videos. The NEVA55 sounds and looks very similar to our german E57.
In the 2nd video there might be a Siemens siren. The sound frequency is lower than the NEVA/E57. Take a look at the new Siemens Fm SI 40 video on youtube: http://www.youtube.com/watch?v=6FtfpEkVdcY
In your case it might be a Fm SI 41, the sound is the same.

Greets from Dortmund, Germany
Steffen

Hmm, I thought so! Siemens sirens are common in Athens, but I never knew that there was installed there one of them! I shall look for it... Thanks!