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Protective Cabinets, Covers and Enclosures

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

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

Stopper II
Did You Know?
You may spot a Stopper during your next vacation: St. Louis Arch, San Francisco, Antartica, Disney, etc.

Stopper II
Did You Know?
Rex the Electronic Watchdog has been used to scare not only intruders, but bear and deer!

Bear Beware
Featured Product

STI-6517B
Wireless Stopper® Station Shield with Cover 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.