STI-13020NB-FR Universal Stopper with Horn, Flush Mount, No Label, Blue

Protect critical alarm points and reduce downtime with Safety Technology International’s STI-13020NB-FR Universal Stopper with Horn. This protective cover is engineered for physical security and lockdown readiness, guarding emergency buttons, dual-action pull stations, intercoms and access keypads from vandalism and accidental activation while supporting monitoring and surveillance workflows.

Built from impact-resistant polycarbonate, the flush-mount stopper measures just 2.5" deep and uses a compact 4" x 5.4" footprint to fit most devices and tight wall cavities. The integrated 105 dB horn provides an unmistakable audible alert to accelerate response during security incidents. ADA-compliant and UL/cUL listed, the unit delivers code-conscious protection for schools, healthcare, corporate facilities and public buildings.

Installation is straightforward for retrofit or new construction—its larger interior accommodates most dual-action pull stations without changing the mounting pattern. Ideal for enhancing your physical security layer, the STI-13020NB-FR pairs with existing surveillance and alarm systems to keep emergency controls operational and visible. Contact your supplier or order now to secure your emergency and lockdown buttons and minimize false alarms and tampering.

• Shields emergency buttons and dual-action pull stations from vandalism and accidental damage, reducing false alarms and costly repairs
• Integrated 105 dB horn delivers immediate audible alert to speed response during security events or lockdowns
• Slim 2.5" flush-mount design and ADA-compliant profile fits tight spaces and maintains compliance in public facilities
• Durable polycarbonate construction resists impacts and weather for reliable indoor/outdoor protection and long service life
• Fits most dual-action pull stations and emergency devices (4" x 5.4" footprint) for straightforward retrofits
• UL/cUL listed with high-strength continuous hinge for dependable daily use in high-traffic environments