System Sensor HRK SpectrAlert Advance 12/24V Horn for Outdoor Ceiling or Wall Installation, Red

When you need a durable, high-output audible notification device for exterior safety and monitoring, the System Sensor HRK horn delivers dependable performance. This SpectrAlert Advance outdoor horn provides up to 99 dB of sound output and automatic 12/24V selection so installers can quickly adapt the unit to existing DC circuits without extra parts. Rated NEMA 4X/IP56 and tested from -40°F to 151°F, the HRK stands up to harsh weather and saltwater environments—ideal for perimeter security, fire notification, and surveillance support. Field-selectable tones and three volume levels let you tailor alerts to code and site needs while the universal mounting plate and plug-in design speed installation and reduce on-site troubleshooting. The red, tamper-resistant housing and compatibility with System Sensor synchronization protocols make the HRK horn a reliable choice for integrated security and monitoring systems. Specify the HRK for outdoor wall or ceiling applications where robust, easy-to-install audible alarms are required—order one for your next security or fire protection project.

• Delivers powerful, code-compliant audible alerts (up to 99 dB) so personnel never miss critical alarms
• Built for outdoor reliability with NEMA 4X/IP56 weatherproofing and saltwater-resistant back box for long service life
• Automatic 12/24V selection and field-selectable tones/volume simplify device configuration on site
• Universal wall/ceiling mounting and plug-in design reduce installation time and minimize wiring faults
• Compatible with System Sensor synchronization and legacy SpectrAlert systems for seamless security integration