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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. National Emergency Alarm Repeater - Wikipedia

    en.wikipedia.org/wiki/National_Emergency_Alarm...

    The NEAR warning device. The National Emergency Alarm Repeater (NEAR) was a civilian emergency warning device in the United States. It was a 2–3" (5–7.5 cm) square box designed to plug into a standard power outlet to receive a special signal sent over the electric power transmission lines.

  4. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    Federal Signal Model 5 in Ballston Spa, New York, U.S.. Sirens are sometimes integrated into a warning system that links sirens with other warning media, such as the radio and TV Emergency Alert System, NOAA Weather Radio, telephone alerting systems, Reverse 911, Cable Override, and wireless alerting systems in the United States and the National Public Alerting System, Alert Ready, in Canada.

  5. Federal Signal Modulator - Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Modulator

    Severn Estuary has a system of Modulator and DSA sirens. The system runs on both UltraVoice and MCP Controllers. They have very different tones compared to the American ones, potentially custom. The system is activated by radio signal at Avon and Somerset Police headquarters. Clemson University has a system of MOD-5020s, MOD-4016s and 2001s.

  6. 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.

  7. Canadian Line Materials - Wikipedia

    en.wikipedia.org/wiki/Canadian_Line_Materials

    The CLM Model 927XXDP siren (rotational CLM) is a 10/12 port rotating electromechanical siren, with a distinctive design featuring two unique horns. The decibel rating of the model is ~130 decibels. These sirens use Lincoln Electric 5 horsepower induction motors. This model of CLM is the most well-known and recognizable warning siren made by CLM.

  8. List of civil defense sirens - Wikipedia

    en.wikipedia.org/wiki/List_of_civil_defense_sirens

    This is a list of civil defense sirens. Alerting Communicators of America (ACA) sirens ... Thunderbolt (siren) Federal Signal 3T22 / 2T22; Federal Signal Model 2;

  9. Siren (alarm) - Wikipedia

    en.wikipedia.org/wiki/Siren_(alarm)

    A siren is a loud noise-making device. Civil defense sirens are mounted in fixed locations and used to warn of natural disasters or attacks. Sirens are used on emergency service vehicles such as ambulances, police cars, and fire engines. There are two general types: mechanical and electronic.