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STI Stopper® Dome Series – Protective Covers for Horns, Speakers, and Strobes
The STI Stopper® Dome Series provides rugged, clear polycarbonate covers that protect horn/strobe units, speakers, and strobes from vandalism, accidental impact, and environmental damage. These virtually indestructible domes come in flush-mount, open back box, and enclosed back box designs. Stopper Dome covers maintain full visibility and accessibility of the protected device while preventing costly damage in schools, warehouses, public facilities, and outdoor installations.
Key Features
- Protects horn/strobe units, speakers, and strobes from vandalism and accidental damage.
- Made of clear, UV-stabilized polycarbonate for long-lasting durability.
- Available in flush mount, open back box, and enclosed back box configurations.
- Allows full visibility of protected devices while preventing tampering or breakage.
- Withstands extreme temperatures: -40°F to 250°F (-40°C to 121°C).
- Backed by a three-year guarantee against breakage in normal use.
- Easy installation with included hardware and mounting options.
Manufacturer Resources
VIEW SPEC SHEET
Product Specs
- Accessories:
- Spacers, Gaskets, Mounting Hardware
- Applications:
- Protects horns, strobes, and speakers from vandalism, tampering, and accidental damage
- Certifications:
- UL/cUL Listed (where applicable)
- Device Compatibility:
- Horn/Strobe, Speaker/Strobe, and Strobe-Only Units
- Parent SKU:
- STI-STOPPER-DOME-SERIES
- Product Line:
- STI Stopper® Dome Series
- Warranty:
- 3-Year Guarantee Against Breakage in Normal Use
- Operating Temperature:
- -40°F to 250°F (-40°C to 121°C)
- Product Group:
- Safety
- Product Subgroup:
- Protective Covers
- Product Type:
- Stopper® Dome Series – Protective Covers for Horns, Speakers, and Strobes
- Department:
- Safety
- Installation Options:
- Flush Mount, Open Back Box, Enclosed Back Box
- Product Material:
- Clear UV-Stabilized Polycarbonate
Parts & Accessories
Safety Technology International STI-1215 – Frequently Asked Questions
How fast can I get the Safety Technology International STI-1215 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-1215 come with a warranty?
Absolutely. The Safety Technology International STI-1215 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-1215?
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-1215 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.