Here is a USABLE Tornado / Fire Siren to place in your town. There is a trigger box at the base of the tower to turn on and off the audio of the siren.
NOTICE ON THE AUDIO:
In the “sounds” folder, there are two audio .WAV files and two .OGG files.
One pair are named Siren1.wav and Siren1.ogg < These are the files used by the mod. This is lower pitch and used in Germany as a Fire alert.
The other pair are named Sirens.wav and Sirens.ogg <These are the alternative audio files. This is higher pitched and used in America as a Tornado Siren. Also in the background you can hear other sirens alerting.
Listen to both the Siren1 and Sirens files and think about which you like more. If you like the original Siren1 sound, do nothing.
If you like the Sirens audio files more, then RENAME the original Siren1.wav and Siren1.ogg files to something else (or just delete them…you choose) and rename Sirens.wav to Siren1.wav and Sirens.ogg to Siren1.ogg.