Timeline of Outdoor Warning Sirens in the US

  • First siren invented

    Intended to be a musical instrument, but just wasn't long-lived.
  • Biersach & Neidermeyer is founded...

    BN, now American Signal Corporation, begins life as Biersach Neidermeyer...
  • Sterling begins..

    The earliest predecessor of Sterling Siren Fire Alarm is founded in 1902...
  • Denver Sirens begin

    Denver Sirens begin
    Dillon Box Iron Works begins selling fire callout sirens named 'Denver Sirens'. This marks the first instance of VFD callout sirens...
  • Federal Electric begins

    Federal Electric, now known as Federal Signal, begins its life...
  • Federal Mach B begins...

    Federal Mach B begins...
    Federal Enterprises begins producing the Mach B, helping to kickstart the fire callout siren boom...
  • Decot Red Arrow begins production

    Decot Red Arrow begins production
    The Decot Machine Works releases their line of sirens, the Red Arrow, to cash in on the fire siren boom...
  • Fedelcode series begins manufacturing

    Fedelcode series begins manufacturing
    Federal Electric released the 'Fedelcode' siren series, including the Model 2, which is the longest-sold warning siren in the world...
  • Period: to

    WWII

    The US enters WWII and prompts warning sirens to be installed nationally...
  • B&N Mobil Directo begins manufacturing...

    B&N Mobil Directo begins manufacturing...
    Obtaining a license to produce warning sirens, Biersach Neidermeyer begin producing the 'Mobil Directo' series of sirens for military bases in the pacific powered by gas engines...
  • Chrysler-Bell Victory Siren begins production...

    Chrysler-Bell Victory Siren begins production...
    The U.S. government tasks Chrysler Automobile and Bell Telephone to create a siren. Using Chrysler's experience with engines and Bell's experience with sound, the two make what will soon be the loudest warning siren in existence. The first generation begins production...
  • B&N BN44E begins production...

    B&N BN44E begins production...
    Biersach Neidermeyer begin producing the BN44E as an electrically powered alternative to the BN52G...
  • Model 5 begins production

    Model 5 begins production
    Federal Electric's Fedelcode series ends (aside from the model 2), and their Model 5 and 7 series begin production under their rebranding, Federal Enterprises...
  • Period: to

    Cold War

    Relations sour between NATO and the USSR as tensions grow...
  • Thunderbolt series begins...

    Thunderbolt series begins...
    Federal Enterprises, seeking to revolutionize sirens, creates the Thunderbolt, to lots of success...
  • Federal 500 series begins...

    Federal 500 series begins...
    Federal Enterprises begins manufacturing the 500 series, to much success...
  • Chrysler Air Raid Siren begins...

    Chrysler Air Raid Siren begins...
    The 3rd Generation, entirely built by Chrysler Automobile, begins production as the world's loudest siren (to this day!)...
  • STH-10 begins...

    STH-10 begins...
    Federal Enterprises releases the STL10, to moderate success...
  • XT22 series begins...

    XT22 series begins...
    Federal Enterprises begins to manufacture the XT22 series as a mid-range siren, to much success...
  • SD10 series begins...

    SD10 series begins...
    Federal Enterprises releases the SD10, to great success, but an unsuccessful concept... (worked great a short-range siren though!)
  • STH10 joins STL10...

    STH10 joins STL10...
    Federal Enterprises begins to produce the STH10 alongside the STL10, to much success...
  • Federal Sign & Signal begins...

    Federal Enterprises rebrands to Federal Sign Signal...
    At this point, most large-scale CD systems are in place.
  • Chrysler Air Raid Siren ends production

    Seeing a decline in sales, Chrysler ends production of the Victory siren.
    By this time, at least 100 Chrysler Air Raid Sirens are existent.
  • Mobil Directo ends, ACA begins...

    Biersach Neidermeyer sell off a failing company, quickly turned profitable...
    ACA immediately begins producing new siren models...
  • ACA Allertor series begins...

    ACA Allertor series begins...
    Having been conceptualized by Biersach, the Allertor begins production under ACA, replacing many faulty CD sirens...
  • ACA Hurricane begins production...

    ACA Hurricane begins production...
    As a direct competitor to the Thunderbolt, ACA begins production of the Hurricane, to moderate success...
  • Sterling rebrands to Sentry Sirens...

    Sterling Siren Fire Alarm falls into decline from Federal Sign Signal's competition, and reforms as Sentry Sirens Inc...
  • Federal Signal begins...

    Federal Sign Signal rebrands to Federal Signal- the one we all know today.