STI 1102 Stopper II Replacement Horn Kit

Keep Stopper II pull stations fully operational and prevent costly false fire alarms with the STI 1102 Stopper II Replacement Horn Kit from Safety Technology International. This replacement sounder unit delivers a reliable audible alarm to maintain clear, compliant notification in retail, education, healthcare and industrial environments. The kit includes the preassembled sounder and housing shell (model STI-1102) in high-visibility red, and runs on battery power for continued operation even during AC outages—ideal for monitoring and surveillance-informed fire safety programs. Designed as a direct swap for the Stopper II product line, the replacement horn minimizes service time and lowers maintenance costs while preserving pull station integrity. Use this audible sounder to strengthen your building’s security and fire alarm strategy, reduce nuisance calls to emergency services, and ensure consistent response during inspections. Keep spare units on hand for preventative maintenance or field service fleets—order the STI 1102 replacement horn kit today to maintain reliable monitoring and protection of your pull stations.

• Restores audible protection to Stopper II pull stations quickly, reducing false dispatches and service interruptions
• Preassembled replacement sounder (STI-1102) for fast, tool-free swap and minimal downtime
• Battery-powered design ensures continued operation during power loss and simplifies maintenance
• High-visibility red housing for easy identification in safety and surveillance inspections
• Made in the USA by Safety Technology International for reliable performance in commercial security and fire systems