Federal Signal FHEX Explosion-Proof Vibrating Horn

Deliver reliable, high-impact audible notification in hazardous and industrial environments with the Federal Signal FHEX Explosion-Proof Vibrating Horn. Engineered as a dependable explosion-proof horn, the FHEX delivers a piercing 99 dBA at 10' (110 dBA at 1 m) on standard 24V DC power, making it ideal for fire alarm, suppression, security and monitoring systems. Its copper‑free cast aluminum housing and stainless steel diaphragm resist corrosion and mechanical wear, while a conduit-ready, pipe-mount form factor simplifies installation on panels, piping or enclosures.

Built for integration, the FHEX includes a supervisory diode and four-wire connections for compatibility with supervised control panels and power boosters. It’s UL and cUL listed for Class I, Division 1 (Groups C & D) and Class II, Division 1 (Groups E, F & G), providing certified protection in classified areas. Whether you’re specifying notification appliances for plant safety, perimeter security, surveillance-assisted facilities, or hazardous location monitoring, the FHEX offers proven performance and longevity.

Specify the Federal Signal FHEX for your next industrial alarm or plant safety project — contact sales or order today to ensure compliant, high-output audible protection.

• Provides a loud, unmistakable audible alert (99 dBA @ 10') to ensure fast response in noisy industrial and hazardous sites
• Explosion-proof, UL/cUL-listed housing for safe use in Class I, Division 1 and Class II hazardous locations
• 24V DC operation with supervisory diode for seamless integration with fire alarm control panels and power boosters
• Heavy‑duty, copper‑free cast aluminum case and stainless steel diaphragm for corrosion resistance and long service life
• Conduit-ready, pipe-mount design for quick installation and reliable mounting in indoor or outdoor applications