SimplexGrinnell tested them? Wow that is odd. I did read something about mass notification on their site, but I didn't know that they sold sirens (or do they?).jkvernon wrote:Whelen and Federal Signal for tones and ASC for voice, specifically the
i-Force. The new i-Force was tested by Simplex Grinnell with their new inteligebility meter to have the highest quality voice out of any electronic siren.
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