STI KIT-6403 Remote Horn Unit, Red

Keep doors monitored and facilities compliant with the Safety Technology International STI KIT-6403 remote horn unit — a purpose-built horn for Exit Stopper systems that delivers immediate audible alerts where you need them. As an STI remote horn unit (model KIT-6403), this red, low-voltage horn provides a clear, attention-getting alarm tone that improves exit security, supports surveillance efforts, and integrates smoothly with access control and monitoring infrastructure. The unit’s audible alarm type is engineered for commercial and institutional settings, enabling easy retrofits or new installations when paired with STI-6400 series exit stopper hardware. The red enclosure boosts visibility for maintenance and helps responders quickly identify alarm locations during inspections. Ideal for schools, healthcare facilities, retail sites, and office buildings, the KIT-6403 reduces unauthorized egress and enhances overall site safety while minimizing installation time. Add the STI KIT-6403 remote horn to your security toolkit to strengthen alarm coverage and streamline system management — contact your distributor or order today to upgrade your exit monitoring.

• Improves exit security with a loud, reliable audible alert to deter unauthorized egress and support monitoring workflows
• Designed for seamless integration with STI-6400 Exit Stopper systems (KIT-6403) to simplify installation and system expansion
• Bright red housing increases visibility for maintenance and inspection, aiding compliance and site safety audits
• Low-voltage horn optimized for building security, access control, and surveillance environments to minimize wiring complexity
• Durable, commercial-grade construction from Safety Technology International for dependable operation in high-traffic areas