System Sensor HRL L-Series Indoor Selectable Output Horn, Wall Mount, no Marking, Red

For dependable, code-compliant audible notification in commercial and industrial security systems, the System Sensor HRL L-Series indoor wall horn delivers reliable performance with installer-focused design. This System Sensor horn combines a plug-in mounting plate with an onboard shorting spring to simplify wiring checks and prevent costly ground faults, speeding deployment on retrofit and new-construction jobs. With field-selectable candela options (15–185 cd) and automatic 12/24V operation, the HRL adapts to a wide range of fire alarm and monitoring panels without extra hardware. Its compact red housing, tamper-resistant construction and low current draw minimize panel load and reduce ongoing maintenance costs. Producing approximately 89 dB of sound emission and offering rotary tone and two volume settings, the device ensures clear audible signaling in corridors, mechanical rooms, and other critical areas. Ideal for security, surveillance, and building monitoring projects that demand dependable alerts and simple installs. Specify the System Sensor HRL L-Series horn to streamline installation and improve emergency notification — contact us or add to your project plan today.

• Speeds installation with a plug-in design and universal mounting plate, reducing labor time and installation errors
• Flexible deployment using field-selectable candela settings (15–185 cd) and automatic 12/24V selection for multiple applications
• Low current draw preserves panel capacity and reduces wiring and power costs in large security and fire systems
• Clear, powerful audible signaling (≈89 dB) to ensure reliable notification across industrial and commercial spaces
• Tamper-resistant construction and compact profile minimize accidental damage and support tidy, professional installations
• Rotary horn tone and two volume selections provide on-site customization for noise-sensitive or high-traffic areas