Anaphylaxis Enclosures

Invacuation & Lockdown

Support Vital Lockdown Systems with Buttons & Covers

UL® Listed Products

Products tested and certified by Underwriters Laboratories®

Multipurpose activation, engineered to fit.

Build it your way. Choose your button type, colour, text, with or without cover.

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We Protect the Things That Protect You.®

STI is a manufacturer of specialist fire, safety and security products. Our products help deter false alarms and prevent theft and vandalism of smoke detectors, fire extinguishers and other essential fire and security equipment.

Our Products

Featured Fire Products

Products to protect essential fire safety devices.

Call Point Protectors

These tough covers have been specifically designed to help deter false fire alarms and to prevent vandalism or accidental activation of manual call points. The range of Call Point Protectors, known as the Stoppers, are highly effective in protecting call points without restricting legitimate operation. The strong, durable construction of our polycarbonate call point protectors means they can withstand the toughest knocks, whilst offering lasting protection against false fire alarms.

Environmental Covers & Enclosures

Designed for protection against false fire alarms and to prevent theft and vandalism as well as weather ingress to manual call points, the range of IP rated enclosures and covers prove highly effective. The enclosures/covers provide protection from the elements, dust and grime without restricting legitimate operation. The strong, durable construction of our polycarbonate weather/waterproof call point protectors means they can withstand the toughest knocks and the severest environmental conditions.

Quickstop Fire Sprinkler Tool

Reduce damage and save water without shutting down the sprinkler system.

Our Products

Featured Fire Products

Products to protect essential fire safety devices.

Call Point Protectors

Environmental Covers & Enclosures

Quickstop Fire Sprinkler Tool

Reduce damage and save water without shutting down the sprinkler system.

4 Value Pillars

Proven Performance

For more than 45 years, every STI product has earned trust through dependable design, durable materials, and rigorous testing. We do things right the first time.

A Reputation Earned Over Time

• 45+ years of industry leadership
• Global reputation for quality and consistency
• Trusted in mission-critical environments worldwide

Proactive Problem Solving

We don’t wait for problems to arise; we identify and resolve them before they disrupt performance. Every solution is designed with foresight, empathy, and real-world field experience.

Designed Around Real-World Challenges

• Custom-engineered solutions for unique environments
• Deep expertise across fire, security & electrical systems
• Continuous improvement based on real-world feedback

Responsive Partnership

With the care of a family-owned business and the reach of a global manufacturer, STI builds trust through responsiveness, fast lead times, and dedicated support.

Support You Can Count On

• Known industry-wide for exceptional customer service
• Industry-leading lead times and on-time delivery
• Dedicated support from concept through installation

Uninterrupted Reliability

Every STI solution is designed to prevent disruptions, minimize false activations, and maintain seamless operation; keeping people, buildings, and systems performing without disruption.

Made to Keep Things Running

• Engineered to minimize false alarms and downtime
• Designed for reliability across diverse environments
• Proven to protect people, property, and productivity

Proven Performance

For more than 45 years, every STI product has earned trust through dependable design, durable materials, and rigorous testing. We do things right the first time.

A Reputation Earned Over Time

• 45+ years of industry leadership
• Global reputation for quality and consistency
• Trusted in mission-critical environments worldwide

Proactive Problem Solving

We don’t wait for problems to arise; we identify and resolve them before they disrupt performance. Every solution is designed with foresight, empathy, and real-world field experience.

Designed Around Real-World Challenges

• Custom-engineered solutions for unique environments
• Deep expertise across fire, security & electrical systems
• Continuous improvement based on real-world feedback

Responsive Partnership

With the care of a family-owned business and the reach of a global manufacturer, STI builds trust through responsiveness, fast lead times, and dedicated support.

Support You Can Count On

• Known industry-wide for exceptional customer service
• Industry-leading lead times and on-time delivery
• Dedicated support from concept through installation

Uninterrupted Reliability

Every STI solution is designed to prevent disruptions, minimize false activations, and maintain seamless operation; keeping people, buildings, and systems performing without disruption.

Made to Keep Things Running

• Engineered to minimize false alarms and downtime
• Designed for reliability across diverse environments
• Proven to protect people, property, and productivity

Trusted by: Fire Protection Contractors • Electrical Contractors • Architects & Specifiers • OEM Manufacturers • Facilities Managers • Distributors Worldwide

Polycarbonate Thermostat Covers Prevent the Rising Cost of Utility Bills

These thermostat covers are recommended in areas where abuse or tampering of thermostats is a problem. Holes in the frame allow air to circulate freely for proper operation of the thermostat, but an interior wall prevents any tampering to the controls with a small object.

Euro Stopper® Multi Kit Polycarbonate Covers

Protective cover helps prevent malicious or accidental activation. The Euro Stopper® consists of a clear, tamper proof, tough UV-stabilised polycarbonate call point cover and frame that retrofits over the break glass call point.