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  2. ATI HPSS - Wikipedia

    en.wikipedia.org/wiki/ATI_HPSS

    Owasso, Oklahoma had 16 ATI HPSS32 sirens that were installed more than 20 years ago. In December of 2023, all 16 HPSS32 sirens were replaced with Whelen WPS-2910 omnidirectional sirens, and a 17th Whelen was installed near Stone Canyon Elementary. Israel has 3100 sirens as a part of its warning system, and 300 of them are HPSS32 sirens.

  3. List of sirens built by Alerting Communicators of America

    en.wikipedia.org/wiki/List_of_sirens_built_by...

    Three sirens in this line up: T-128, T-135 AC, and T-135 AC/DC The T-135 AC was known as ACA P-50, the name was changed after ACA's bankruptcy. The T-135 AC/DC is a siren that is bigger and more powerful than the T-128 and has a similar design and also has a battery backup system. This was introduced around 2007, replacing the T-135 AC.

  4. Whelen Engineering Company - Wikipedia

    en.wikipedia.org/wiki/Whelen_Engineering_Company

    The Whelen Company is divided into four divisions and has a subsidiary called Whelen Motorsports.. The four divisions of the company are as follows: The Automotive Division — provides lightbars, dashlights, strobe kits, siren boxes, and other public warning systems to be mounted on or within vehicles, [3] rotating sirens, and student alert systems with voice broadcast capability.

  5. Hear an outdoor emergency siren in the county? Here's ... - AOL

    www.aol.com/hear-outdoor-emergency-siren-county...

    The outdoor weather siren system in St. Joseph County is in need of new electronics and an upgrade, ... "They're an early warning outdoor siren system," he said Monday. "They have been around for ...

  6. Changes coming to outdoor warning sirens in Hillsdale County

    www.aol.com/changes-coming-outdoor-warning...

    Beginning March 4, a date planned to mark the beginning of the 2024 testing schedule, the outdoor warning sirens will include a solid steady siren that will sound for one minute (during an actual ...

  7. Hawaii has a robust emergency siren warning system. It sat ...

    www.aol.com/hawaii-robust-emergency-siren...

    In fact, the state’s vaunted integrated outdoor siren warning system – the largest in the world, with about 400 alarms – was not activated during the fires, according to Hawaii Emergency ...

  8. American Signal Corporation - Wikipedia

    en.wikipedia.org/wiki/American_Signal_Corporation

    American Signal Corporation (ASC) is an outdoor warning siren and mass notification company in the United States. ASC was founded in 1873 as Biersach and Niedermeyer (B&N). After performing poorly, the company reformed as Alerting Communicators of America (ACA) in 1968, and expanded the line of warning systems they produced. In 1992, ACA went ...

  9. Federal Signal Corporation - Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Corporation

    By this time, it made outdoor warning sirens, police sirens, fire alarms, and outdoor lighting. By 1961, Federal Sign and Signal had gone public, trading on the NASDAQ market. This was when new products started being manufactured and sold, such as the Federal Signal STH-10. In 1976, the company became Federal Signal Corporation.