Hazardous Areas

Alarm Sounder

Product Overview

The IS-A105N is a high output, 105 dB(A) alarm sounder. Approvals include ATEX, IECEx and GOST-R for Zone 0 applications and FM approval for Class I Division 1 and Class I Zone 0 applications.


  • Input overload and reverse current protection
  • Auto synchronised sound output
  • Unit can be mounted using external lugs or internal BESA compatible fixing positions
  • Duplicate cable terminations (in & out for daisy-chain installations)
  • Available with custom tone configurations and frequencies


WARNING: The information on this website must not be treated as complete instructions for the design, construction, installation, commissioning, or maintenance of systems in hazardous areas. Cabling and fire system devices in hazardous areas must be designed and installed by properly qualified persons, in accordance with all applicable standards and regulations.