STI Smoke Detector Damage Stop...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$30.39
STI Smoke Detector Damage Stoppers – Protective Covers for Smoke Alarms

STI Smoke Detector Damage Stoppers – Protective Covers for Smoke Alarms

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Model: STI-8100

In Stock (leaves warehouse same day if ordered before 3pm ET)

$30.39
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STI Smoke Detector Damage Stoppers – Protective Covers for Smoke Alarms

STI Smoke Detector Damage Stoppers provide reliable protection against vandalism, tampering, and accidental damage to smoke detectors in high-risk environments. These robust enclosures are available in polycarbonate, stainless steel, or coated cold-rolled steel, and come in flush or surface mount configurations. Designed to maintain smoke detector functionality without interfering with sensitivity, these UL Listed covers reduce false alarms and maintenance costs.

Key Features

  • Constructed of polycarbonate, stainless steel (304), or coated cold-rolled steel
  • Available in flush mount or surface mount with optional spacers
  • UL Listed for use with many top smoke detector brands (System Sensor, Honeywell, EST, Siemens, etc.)
  • Helps prevent false alarms caused by vandalism or physical impact
  • Tamper-resistant fasteners available
  • Conduit spacers and backplates available for specialized mounting needs
  • Three-year guarantee against breakage in normal use

 

Manufacturer Resources

VIEW SPEC SHEET

Product Specs

Detector Compatibility Details:
UL Listed (UL No. S3504) – No sensitivity adjustment required
Installation:
ceiling mount; easy removal for service
Operating Temperature:
Standard ambient indoor conditions
Product Line:
STI Smoke Detector Damage Stoppers
Tamper Resistance:
Conduit Spacer, Mounting Backplate
Warranty:
Three-Year Guarantee Against Breakage (Normal Use)
Accessories:
Surface or flush wall
Application:
System Sensor, EST, Honeywell, Siemens, Mircom, and more
Certifications:
Tamperproof screw kits available (sold separately)
Product Group:
Safety
Product Subgroup:
Protective Covers
Product Type:
Smoke Detector Damage Stoppers – Protective Covers for Smoke Alarms
Department:
Safety
Product Color:
Clear, Black, White, Stainless Steel
Installation Options:
Flush Mount or Surface Mount (with Spacer)
Product Material:
Polycarbonate, Stainless Steel (304), Cold Rolled Steel (White Coated)

Parts & Accessories

    Safety Technology International STI-8100 – Frequently Asked Questions

    1) Will an STI Smoke Detector Damage Stopper affect my smoke detector's sensitivity or cause it to fail testing?
    No sensitivity adjustment is required. The Smoke Detector Damage Stopper is UL Listed under UL No. S3504 for use over the detector, so the detector keeps operating as listed with the cover in place. That is the point of the enclosure: it takes the abuse (vandalism, tampering, accidental impact) instead of the head, which is what cuts the nuisance trips and service calls in dorms, correctional areas, and heavy-traffic corridors.
    2) Will the STI Damage Stopper fit my System Sensor or Honeywell smoke detector?
    The Damage Stopper line covers System Sensor, EST, Honeywell, Siemens, Mircom and other major detector brands, and it is UL Listed (UL No. S3504) for that use. Match the cover to the detector head you actually have on the ceiling rather than to the panel brand, since the enclosure has to clear the head and its base.
    3) Should I order the flush mount or the surface mount smoke detector cover?
    It comes down to how the detector sits on the ceiling. Flush mount is for a detector mounted directly to a flush box or ceiling surface. Surface mount is for a detector standing off the ceiling, and it uses a spacer to give the head the extra depth it needs. The Damage Stopper is offered both ways: flush in clear, black, white, natural stainless and white coated, and surface mount in clear (with spacer), natural stainless and white coated.
    4) Which material should I pick for a smoke detector cover in a jail, school, or psych unit?
    Three materials are offered. Polycarbonate is the clear option, so the detector head and its LED stay visible. Stainless steel (304) is the corrosion-resistant metal choice. Coated cold rolled steel is the painted white metal option. In detention and behavioral health spaces the metal covers are the ones people specify, since the enclosure is what absorbs the hit; where staff need to eyeball the detector without pulling the cover, the clear polycarbonate is the one to order.
    5) Can my techs still test and clean the detector with the STI cover installed?
    Yes. The Damage Stopper is a ceiling mount enclosure built for easy removal for service, so annual sensitivity testing, head cleaning, and detector replacement happen the normal way. If you order the tamperproof fasteners, keep the matching tamper bit with the fire alarm tech, otherwise the cover is the thing standing between them and the head.
    6) Are STI Damage Stoppers rated for outdoor or wet locations?
    These are indoor covers. The Damage Stopper is rated for standard ambient indoor conditions, so use it in corridors, stairwells, dayrooms, gyms, dorms, and back-of-house areas. For an unheated garage, loading dock, or anything exposed to weather, you need an enclosure rated for that environment instead.
    7) I need to standardize smoke detector protection across a whole building with mixed detector brands. Will one cover work everywhere?
    The Damage Stopper line is UL Listed (UL No. S3504) across System Sensor, EST, Honeywell, Siemens, Mircom and more, so a mixed-brand building can be covered by the same product line. What varies from opening to opening is mounting, not brand: flush mount where the head sits tight to the ceiling, surface mount with a spacer where it stands off or has exposed conduit. Walk the building and count flush versus surface first, then pick one finish to keep it uniform.
    8) What finishes do STI smoke detector damage stoppers come in for a finished lobby or corridor ceiling?
    Four appearances: clear polycarbonate, black, white, and natural stainless steel. On a white ceiling the white coated steel or clear polycarbonate disappear best; black suits a dark open-plenum ceiling; natural stainless matches stainless trim in kitchens and healthcare spaces. Clear is the only one that leaves the detector head and its indicator visible from the floor.
    How fast can I get the Safety Technology International STI-8100 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-8100 come with a warranty?
    Absolutely. The Safety Technology International STI-8100 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-8100?
    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-8100 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.
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