Safety Technology International Stopper II with Horn Flush Mount, Fire Label

STI Stopper II® Protective Cover – Red Horn Housing, Optional Horn & Spacer

The Stopper II® Indoor/Outdoor Protective Cover series with optional horn and spacer configurations is engineered to protect life safety devices from vandalism, dust, and accidental activation. Available in flush-mount or spacer-mount options, each unit features a rugged red horn housing with optional clear spacers for surface applications. Variants include models with or without an internal 95 dB horn and offer customization options such as Custom Label, No Fire Label, or “A” Backbox with Special Gasket and Plate assemblies for enhanced weather sealing and device compatibility. Designed for ease of installation and maximum protection, Stopper II covers meet the demands of both commercial and industrial environments.

Key Features

• False Alarm Prevention: Safeguards against accidental or prank activations without impeding legitimate use.
• Physical Protection: Hard polycarbonate shell guards pull stations, enhancing durability—even outdoors
• Optional Alarm Horn: Models with an internal piezo horn generate 95 dB or 105 dB when lifted, alerting security or staff.
• Outdoor Rated Models: Weather-resistant with IP54-rated gaskets for outdoor installations.
• ADA Compliance: Both flush‑mount and surface models meet ADA standards.
• UV & Temperature Resilience: Polycarbonate withstands –40 °F to 250 °F (–40 °C to 121 °C).
• Battery: Includes a 9 V DC alkaline battery; remote-powered versions available.