Secutron FH-400-LF-WW Low-Frequency Wall / Ceiling Mount Sounder, White

Designed to maximize occupant safety in sleeping areas, the Secutron FH-400-LF-WW Low-Frequency Wall / Ceiling Mount Sounder delivers a reliably loud, low-frequency alert that improves wake response during emergencies. This Secutron sounder meets NFPA 72 requirements and emits a 520 Hz ±10% square wave tone—the proven frequency range for more effective arousal than conventional tones. Built for installers and system integrators, the unit supports both VDC and VFWR power inputs, simplifying upgrades and compatibility with fire alarm control panels and security monitoring systems. Its compact white housing installs on wall or ceiling and mounts to single gang, double gang, or 4" square boxes, reducing labor time and inventory complexity. DIP-switch selectable audible patterns let integrators tailor notification sequences for specific site needs, while the unobtrusive design blends into commercial, hospitality, healthcare, and residential security environments. Ideal for fire alarm, security and surveillance projects where code-compliant sleeping-area notification is required. Add the Secutron FH-400-LF-WW to your fire alarm or monitoring system today—contact your supplier to order or specify it on your next project.

• Proven NFPA 72 compliance for sleeping-area notification, helping ensure occupants are awakened during emergencies
• 520 Hz ±10% square wave low-frequency tone for superior wake effectiveness compared to standard sirens
• Dual power compatibility (VDC or VFWR) for seamless integration with existing fire alarm and monitoring systems
• Flexible wall or ceiling mounting that fits single gang, double gang or 4" square boxes for fast installation
• Installer-friendly DIP switches for customizable audible patterns and quick on-site configuration