Siren question - OnStar commercial

hrtbreaker

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New Member
Jun 15, 2010
9
1
Midwest, USA
In the following OnStar commercial, the fire department responds to a car accident dispatched by OnStar.

At about 22 seconds as the garage door is opening, you first hear a siren. It's a really low tone before it winds up.

I know it's a long shot but does anyone know what tone this is and who makes this siren?

Video:

Thanks
 
sounds like the carson on our ambulances...
 
The following siren models have that wail tone:
PA15A series 1E (1970s)
PA20A series 2E (1970s)
PA20A series B (1980s)
PA70
PA100
PA150
PA170
PA200
PA1000
 
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