Remember this?

[danwisbey85]

http://www.youtube.com/watch?v=dByjdhWM ... on%20siren

Well, I have come across a small recording of the sirens doing both signals, this has both wind-ups too! (I missed the first wind-up, on my video)

http://www.bagshotvillage.org.uk/know/siren.wav

Is it me, or does it sound very similar to the 3T22 hi-lo? Just longer pauses between the signals?

Dan.

[SirenMaster2000]

It kinda does and it also sounds sort of like an STH10 in the beginning of the wind-up

[quiksmith10]

There is something strange with the second sound clip. It sorta sounds like a 3t22 when it reaches "full" power. However, the xt22 series has a very fast startup and reach full sounding power in a matter of a second. Either this isn't a true 3t22, it is getting a lack of power, or is broken.

[AllSafe]

That Klaxon CS has a strange timing interval on the high-low signal. I wonder why they chose to have such a slow signal interval?

[KnightFox]

Sounds like a 3t22 with a worn out motor and a slower *Hi-lo* timer