• Heavy-Duty Multi-Tone Sirens

    Robust and safe

    Your benefits

    The robust housings of WERMA Heavy Duty Multi-Tone Sounders are particularly well-suited for use in public areas or in harsh industrial environments. Versions with an aluminium housing and separate certifi cation (German Lloyd) are available for marine applications.

    • Ideal in extremely noisy environments and over long distances
    • Many application options with up to 42 tones
    • Up to 3 tones can be externally triggered for the escalation of signals
    • Includes standardised tones (including those used in fi re alarms)

    Typical applications

    Signalling of faults and alarms

    • outdoors in extreme conditions
    • in larger industrial plants
    • in maritime applications

    Installation options

    • Wall mounting


    • High protection rating up to IP67
    • Multi-voltage versions allow multiple applications with a single device
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    WERMA Catalogue 2017/2018

    Catalogue 2020/21

    The WERMA product range

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    Tech-Talk - Acoustics in signal technology

    Regardless of language and alphabet – acoustic signals usually consist of an alarm tone triggered when faults occur.

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