STI-13030NG-FR Universal Stopper, No Label Flush, 12-24V DC, Green Sounder

Keep critical emergency and lockdown devices protected and fully operational with the Safety Technology International STI-13030NG-FR universal stopper. This horn cover is engineered to shield pull stations, keypads, intercoms and emergency buttons from vandalism, dust and accidental activation—helping maintain reliable alarm, access control and monitoring systems. Constructed from tough polycarbonate for indoor/outdoor use, the cover withstands extreme temperatures from -40°F to 250°F and resists impact and grime for long service life.

The STI-13030NG-FR features an integrated green sounder and relay compatible with 12–24V DC systems, delivering clear audible alerts that integrate easily with existing security and surveillance infrastructure. The flush, ADA-compliant design keeps controls accessible while reducing tampering and false triggers—ideal for schools, healthcare, commercial and government facilities.

Specify the Safety Technology universal stopper to enhance site security, streamline maintenance and protect investments in alarm and lockdown hardware. Contact your distributor or order the STI-13030NG-FR today to bolster your facility’s emergency response and monitoring setup.

• Protects emergency and lockdown devices from vandalism and accidental activation, preserving system uptime and reducing false alarms
• Durable polycarbonate cover built for indoor/outdoor use and extreme temperatures (‑40°F to 250°F) for long-term reliability
• Integrated green sounder with relay compatible with 12–24V DC alarm and access control systems for audible alerts
• ADA-compliant flush design provides low-profile, code-friendly protection without obstructing operation
• Universal fit for pull stations, keypads, intercoms and emergency buttons to simplify installation and retrofit projects