Federal Signal 55-120-1 Horn 120V AC Resonating

When loud, dependable audible notification is required, the Federal Signal 55-120-1 resonating horn delivers a clear, high-output alert ideal for security, surveillance and monitoring environments. This resonating diaphragm horn produces a smooth, penetrating tone that outperforms vibrating horns, ensuring personnel and automated systems detect alarms even in high ambient noise areas. Built for real-world installations, the 55-120-1 runs on standard 120V AC, mounts via a durable bracket and includes 1/2" conduit-tapped housings for fast, code-compliant wiring. The rugged, US-made housing is weatherproof, dust- and corrosion-resistant for reliable outdoor or indoor use. With a 5-minute on/5-minute off duty cycle, it’s optimized for intermittent alarm sequences in industrial plants, campuses, and critical infrastructure facilities. Specify the Federal Signal 55-120-1 when you need a robust, easy-to-install horn that supports security and monitoring systems with authoritative audible performance. Contact us to add this resonating horn to your alarm or notification design.

• Penetrating, resonating diaphragm delivers a powerful, smooth tone that cuts through high ambient noise for reliable audible alerts
• Weatherproof, corrosion- and dust-resistant housing ensures dependable performance for indoor and outdoor security and surveillance applications
• 120V AC operation integrates easily with facility power systems for consistent alarm signaling
• Bracket mount design and 1/2" conduit-tapped housing speed installation and simplify wiring for maintenance teams
• Designed for intermittent alerting with a 5-minute on / 5-minute off duty cycle, reducing overheating risk during repeated use