• Degree of protection IP65
• Class B for broadcasting a fire escape sound conforming to standard NFS 32-001
• Its raised bottom leaves more room for wiring
• It comes with two rubber grommets
• Usable in type 1, 2a and 4 Alarm equipment
• NF SSI certified Sound diffuser class B for broadcasting a fire evacuation sound conforming to standard NFS 32-001. Its raised bottom leaves more room for wiring. It comes with two rubber grommets. Usable in alarm equipment type 1, 2a and 4 NF SSI certified Reference standards: EN 54-3 and NFS 32-001.