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
WERMA Contact


If you have any questions or comments, please simply contact us.

contact now
WERMA Catalogue

General Catalogue

The new WERMA product range

visit now

Tech-Talk - Acoustics in signal technology

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

more information