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  2. 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.

  3. American Signal Corporation - Wikipedia

    en.wikipedia.org/wiki/American_Signal_Corporation

    Hörmann GmbH began selling their ECN/ECI sirens through ASC's market. Over the decade, the prominent advancements the company made in its sirens' designs included battery operation, high powered Voice/Sirens, and indoor alerting systems. Similarly, designed sirens were still manufactured, but under new names, such as the Tempest series.

  4. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    A similar siren system in Carstairs, Scotland, called the Carstairs Hospital Siren System, uses 9 sirens, 7 of them being Secomak CS8, 1 being a Klaxon GP8 and 1 being Secomak GP12. The hi-lo signal is rarely used since during emergencies, they sound a continuous tone for 8 minutes and in all clear, they sound a long wail, consisting of 30 ...

  5. List of civil defense sirens - Wikipedia

    en.wikipedia.org/wiki/List_of_civil_defense_sirens

    Sentry Siren; SiraTone This page was last edited on 5 August 2024, at 16:06 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 License ...

  6. ACA Hurricane - Wikipedia

    en.wikipedia.org/wiki/ACA_Hurricane

    The company continued production of the Hurricane siren until 1980, when the Hurricane was replaced with the Penetrator P-50, a 50-horsepower, dual-tone, 135 dB siren. All versions of the ACA Hurricane are very rare, with the square-horn variant being the most rare out of all of them. Most of units have been replaced by newer, capable sirens.

  7. These Are the Best Emergency Radios to Keep You Updated ...

    www.aol.com/best-emergency-radios-keep-updated...

    WR120B Emergency Weather Alert Radio. This is not the same as an outdoor-ready, crank-arm capable radio. Rather, think of it like a smoke detector alarm or CO2 detector, albeit a unit that relies ...