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    Horns & Sounders

    SpectrAlert® Advance HW-LF Selectable-Output Low Frequency Sounder 

    SpectrAlert® Advance HW-LF Selectable-Output Low Frequency Sounders are white, two-wire, 12/24V, low frequency sounders for wall or ceiling installation.

    Overview

    SpectrAlert® Advance HW-LF Selectable-Output Low Frequency Sounders are white, two-wire, 12/24V, low frequency sounders for wall or ceiling installation. These sounders are designed to address the NFPA 72 sleeping space requirements that require a low frequency notification appliance that operates within frequency range of 520 Hz ± 10% and is of a square wave tone. These devices feature plug-in designs with minimal intrusion into the back box, making installations fast and foolproof while virtually eliminating costly and time-consuming ground faults.

    Certifications:
    • UL Listed: S4011
    • MEA Listed: MEA452-05-E
    • FM Approved: 3047563
    • CSFM: 7135-1653:0223; 7125-1653:0224
    Others
    Name
    Description
    File Size
    Date
    Size
    LowFrequencySounder_EngSpec
    application/pdf 67.54 KB
    5/14/2023
    67.54 KB
    Low Frequency Notification Appliances Applications Guide
    application/pdf 320.97 KB
    8/1/2023
    320.97 KB
    LowFrequency_NotAppliances_AppGuide_AVAG424
    application/pdf 320.97 KB
    2/17/2022
    320.97 KB
    AVFL52401_LowFrequency_Overview_web
    application/pdf 220.1 KB
    5/17/2023
    220.1 KB
    Low Frequency Sounders and Sounder Strobes Datasheet
    application/pdf 401.36 KB
    5/14/2023
    401.36 KB
    AV_Brochure_AVBOR104
    application/pdf 1.4 MB
    5/11/2023
    1.4 MB
    Manual_156-3889
    application/pdf 1.59 MB
    5/8/2023
    1.59 MB
    Name
    Description
    File Size
    Date
    Size
    LowFrequencySounder_EngSpec
    application/pdf 67.54 KB
    5/14/2023
    67.54 KB
    Low Frequency Notification Appliances Applications Guide
    application/pdf 320.97 KB
    8/1/2023
    320.97 KB
    LowFrequency_NotAppliances_AppGuide_AVAG424
    application/pdf 320.97 KB
    2/17/2022
    320.97 KB
    AVFL52401_LowFrequency_Overview_web
    application/pdf 220.1 KB
    5/17/2023
    220.1 KB
    Low Frequency Sounders and Sounder Strobes Datasheet
    application/pdf 401.36 KB
    5/14/2023
    401.36 KB
    AV_Brochure_AVBOR104
    application/pdf 1.4 MB
    5/11/2023
    1.4 MB
    Manual_156-3889
    application/pdf 1.59 MB
    5/8/2023
    1.59 MB
    Name
    Description
    File Size
    Date
    Size
    LowFrequencySounder_EngSpec
    67.54 KB
    5/14/2023
    Low Frequency Notification Appliances Applications Guide
    320.97 KB
    8/1/2023
    LowFrequency_NotAppliances_AppGuide_AVAG424
    320.97 KB
    2/17/2022
    AVFL52401_LowFrequency_Overview_web
    220.1 KB
    5/17/2023
    Low Frequency Sounders and Sounder Strobes Datasheet
    401.36 KB
    5/14/2023
    AV_Brochure_AVBOR104
    1.4 MB
    5/11/2023
    Manual_156-3889
    1.59 MB
    5/8/2023