The HPSS16 is an electronic siren made by Acoustic Technology Inc. (ATI) that is omnidirectonal. It looks like the HPSS32, but with only one series of horns...
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The HPSS16 is an electronic siren made by Acoustic Technology Inc. (ATI) that is omnidirectonal. It looks like the HPSS32, but with only one series of horns...