SONF1 Alarm Horn Sounder

The SONF1 is a compact, high output, 100dB(A) alarm sounder. Low current consumption and high SPL in a robust fire retardant housing ensure it is suitable for general signalling applications including fire, security and process control.

Sonora range offers compact audio visual signaling for fire, industrial, process control and machine safety applications. The range features low current consumption combined with high performance. The SONF1 is available with two levels of sound level output and is CPR compliant (tested to EN54-3) for fire alarm use. Approved by VdS and UL.

Product code: SONF1


Main features and benefits:

  • Automatic synchronisation on multi-sounder system.
  • Continuously rated.
  • Stainless steel fixings.
  • Mounting via internal BESA compatible fixing positions (standard version) or via external mounting lugs.
  • Duplicate cable terminations (in & out for daisy-chain installations).
  • Tropicalisation available on request.
  • Available with custom tone configurations and frequencies.


  • VdS approved: EN54-3 (CPD 89/106/EEC).
  • UL & cULs approved: General signalling use.
  • GOST-R approved. Cert: POCC GB.JB05.H00144.
  • Marine Equipment Directive (MED) Certificate: MEDB00001EH

Click on the links below to download the following attachments:

Marine Fire Detection Catalog (page40-47) .pdf

SONF1 Data Sheet.pdf