The STI-1200A Stopper II represents a comprehensive emergency notification solution featuring integrated horn functionality and specialized gasket assembly. This unit combines a durable backbox with precision-engineered plate components and custom gaskets designed to ensure optimal sealing and acoustic performance. The "A" configuration delivers reliable audible alerts suitable for high-noise industrial and commercial environments. Built with professional-grade materials, the Stopper II withstands rigorous operational demands while maintaining consistent signal output. The included gasket system prevents moisture infiltration and environmental contamination, extending equipment longevity. Perfect for facilities requiring dependable emergency communication systems that meet stringent safety and performance standards.

The Stopper II is a patented product that has been preventing both intentional and accidental false fire alarms globally for more than 25 years, all while allowing genuine alarms to function without hindrance. This particular model features a four-inch deep, fully enclosed backbox, making it suitable for installation in wet or wash-down environments like kitchens, cafeterias, meat processing facilities, showers, and outdoor locations. It offers protection against physical impacts—whether accidental or deliberate—as well as against dirt and grime. The enclosure is not locked, ensuring quick and easy access for authorized use.

Specifications:

Features:

• Protective polycarbonate cover
• Helps stop false alarms
• For wash down areas
• Back box rated to NEMA 3R Standards
• UL Listed, ADA Compliant
• 3 yr guarantee, 1 yr on electronics