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Protective Cabinets, Covers and Enclosures

Did You Know?
Polycarbonate is so strong it is used for “bulletproof” windows and other applications requiring great flexibility and strength.

Did You Know?
The Universal Stopper is made from the same material as football helmets - polycarbonate!

Universal Stopper
Did You Know?
STI made its way to Paris! Find our very own Stopper II in the Eiffel Tower.

Stopper II
Did You Know?
Stopper II has been helping stop false fire alarms for over 30 years.

Stopper II
Featured Product

STI-6517B
Wireless Stopper® Station Shield with Sound and Transmitter

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About STI Protective Cabinets, Covers and Enclosures

Our range of lockable polycarbonate enclosures, bio protector covers and control panel enclosures are perfect for anti-vandalism and protection against accidental damage or the environment.

Strong and durable, all of our protective cabinets, covers and enclosures guard against both accidental and intentional physical damage.

The Stopper Line includes smoke detector covers and cages, heated cabinets, weatherproof enclosures, lockable polycarbonate enclosures and CCTV damage stoppers designed for anti-vandalism.