STI will be closed on November 27th and 28th. Normal business hours will resume on December 1st.
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Safety Technology International, Inc. Overview
STI manufactures high-quality protective covers, cages, alarms, and custom push buttons that safeguard essential life-safety and security devices. Trusted worldwide, STI’s innovative product line helps prevent vandalism, false alarms, and accidental damage, ensuring long-lasting protection and reliable performance for the equipment that protects people and property.
STI Videos
Stopper II® with Spacer Installation
Learn how to easily install the Stopper II® with spacer, the industry’s most trusted protective cover for manual pull stations. For over 40 years, this patented design has helped prevent false fire alarms without restricting legitimate activation. Ideal for schools, hospitals, and public buildings needing reliable alarm protection.
STI Videos
Steel Web Stopper® High Profile, Surface Mount (STI-9610)
The Steel Web Stopper® high-profile wire guard (STI-9610) protects smoke detectors from vandalism and accidental impact. Constructed of heavy-duty steel wire with a corrosion-resistant coating, this surface-mount design ensures reliability in high-traffic or exposed environments like warehouses, gyms, and commercial buildings.
STI Videos
Motion Sensor Damage Stopper® (STI-9619)
The Motion Sensor Damage Stopper® (STI-9619) features tough 9-gauge steel construction that shields corner-mount motion sensors from vandalism or accidental hits. Perfect for high-traffic or public areas where consistent sensor operation is critical.
STI Videos
Motion Detector Damage Stopper® (STI-9622)
The STI-9622 Motion Detector Stopper® offers durable protection against vandalism and accidental damage. Made from coated 9-gauge steel wire, this cage provides long-term reliability in tamper-prone or heavily used facilities.
STI Videos
Stopper Station® Push Button LED Illumination Options
The Stopper Station® push button series offers LED illumination options (SS2xx2, SS2xx5, SS2xx8, SS2xx9 models). Designed for emergency, access control, and signaling applications, these buttons provide visibility, functionality, and long-lasting durability.
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Break Glass Stopper® (STI-4100 / STI-4130)
Approved by fire marshals worldwide, the Break Glass Stopper® offers tamper-resistant fire alarm protection in unsupervised or high-risk areas. It provides a reliable, code-compliant solution for emergency call points while preventing false activations and unnecessary service calls.
STI Videos
Polycarbonate Enclosure (STI-7510 / STI-7511) Changing Lock Mechanism
Learn how to change the lock mechanism on STI’s polycarbonate enclosures (STI-7510 / STI-7511). These wall-mounted covers help prevent damage, vandalism, and dust intrusion—ideal for commercial and industrial environments.
STI Videos
Beacon & Sounder Damage Stopper® (STI-9617)
The Beacon & Sounder Damage Stopper® (STI-9617) provides rugged protection for fire and security alarms. Built from durable 9-gauge coated steel wire, this cage helps prevent vandalism and accidental impact in schools, warehouses, and industrial sites.