STI 1130NR Stopper II with Horn and Clear Spacer, No Label

Stopper II cover protects your fire alarm pull stations while reducing costly false alarms and nuisance activations. The Safety Technology International STI 1130NR is a protective cover with a built-in horn and clear spacer designed to deter tampering and alert staff and security personnel the moment the hood is lifted. A self-contained 95/105 dB audible horn (model-dependent) immediately draws attention to attempted interference, improving surveillance and monitoring effectiveness without restricting legitimate alarm use. Constructed from UV-stabilized polycarbonate, this surface-mount, tamperproof security cover resists impact and harsh environments common in schools, hospitals, hotels and industrial facilities. The unit ships with a 9V battery, is UL/cUL Listed and ADA Compliant, and carries a 3-year limited warranty for dependable operation. Ideal for facility managers and security teams looking to protect critical life-safety devices and reduce false alarm costs. Add the STI 1130NR Stopper II to your fire protection and security strategy today — order now or specify it for upcoming installations.

• Dramatically reduces false fire alarms by deterring tampering with a loud audible warning
• Piercing 95/105 dB horn draws immediate attention to incidents, aiding security and monitoring response
• Durable, UV-stabilized polycarbonate hood protects pull stations without obstructing legitimate activations
• Surface-mount, tamperproof design for easy installation in schools, hospitals, commercial and industrial sites
• UL/cUL Listed and ADA Compliant with included 9V battery and a 3-year limited warranty for reliable performance