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Protective Cabinets, Covers and Enclosures

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

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

Did You Know?
In some states, stealing a fire extinguisher is a third-degree felony punishable by up to five years in prison, a fine up to $5,000 or both?

Prevent Theft
Featured Product

STI-7510A-HTR
Heated Polycarbonate Enclosure - Key Lock

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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.