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STI Break Glass Protective Covers – Fire & Security Access Models
The STI Break Glass Stopper® Series provides secure yet accessible storage for emergency keys, fire alarm pull stations, and similar devices. Constructed from durable polycarbonate or ABS, these covers deter theft and false activation by requiring the glass to be broken for access. Available in multiple sizes and languages, with surface or flush mount options, the Break Glass Stopper is a cost-effective, fast-install solution for safety and security in schools, businesses, and public buildings.
Key Features
- Keeps emergency keys or fire alarms visible but secure
- Durable polycarbonate or ABS housing for long-lasting protection
- Requires breaking the glass for access – strong theft deterrent
- Fast installation with included screws and anchors
- Optional gaskets for weather resistance (outdoor use)
- Multiple sizes (small or large) and mounting types (flush or surface)
- Available with English, French, or Spanish glass labels
- Three-year guarantee against breakage of the housing in normal use
Manufacturer Resources
VIEW SPEC SHEET 1
Product Specs
- Accessories:
- Spacers, Gaskets, Replacement Glass & Tools
- Applications:
- Fire Alarm Pull Stations, Emergency Keys, Generic Break Glass Usage
- Certifications:
- UL Listed (select models)
- Functions/Labels:
- Standard Cover, Emergency Cover, Keys Under Glass, Generic Break Glass
- Parent SKU:
- STI-BREAK-GLASS-STOPPER-SERIES
- Product Line:
- STI Break Glass Stopper® Series
- Warranty:
- 3 Years on Housing (Normal Use)
- Cover Design:
- Break Glass Protective Cover
- Sizes Available:
- Small (STI-6100, 6700, 6720) / Large (STI-4100, 4100EM, 4130)
- Product Group:
- Safety
- Product Subgroup:
- Protective Covers
- Product Type:
- Break Glass Protective Covers – Fire & Security Access Models
- Department:
- Safety
- Glass Specification:
- Breakable Glass (replacement available)
- Installation Options:
- Flush Mount or Surface Mount (varies by model)
- Product Material:
- UV-Stabilized Polycarbonate Housing
Parts & Accessories
Safety Technology International STI‑4100 – Frequently Asked Questions
How fast can I get the Safety Technology International STI‑4100 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Safety Technology International STI‑4100 come with a warranty?
Absolutely. The Safety Technology International STI‑4100 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Safety Technology International STI‑4100?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Safety Technology International STI‑4100 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.