This looks rather like what I saw in LFB vehicles, and Met cars, but they had fewer switches. UK members thought Whelen made the sirens, but I was told by the fire and police guys that the sirens were custom made for them, to their specs. Maybe Woodway repackages the siren, or makes their own in addition to selling Whelen products. In either case, the sirens sounded like those in the US, being quite high pitched.