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Clear polycarbonate flush-mount smoke detector guard with open back, indoor use

Safety Technology International

Safety Technology International STI-8100 Smoke Detector Guard, Polycarbonate, Flush Mount

SKU CH-217D-SCT44

A clear polycarbonate flush-mount guard protects smoke detectors from vandalism and damage, operating from -40 to 250 degrees F and UL listed

  • TypeFlush Mount
  • Protects detectors from vandalism with a clear polycarbonate guard
  • UL Listed for verified safety compliance
  • Withstands extreme temperatures from -40 to 250 degrees F
  • Flush-mount design fits cleanly into ceilings or walls
  • Includes mounting hardware for quick installation

Smoke Detector Guard for Indoor Protection

The Safety Technology International STI-8100 is a clear polycarbonate guard designed to shield flush-mounted smoke detectors from vandalism and accidental damage. It fits indoor environments where exposed detectors are at risk. The unit carries a UL listing confirming it meets recognised safety standards. Buyers who need a surface-mount enclosure or a weatherproof outdoor cage will not find those configurations here.

Thermals and Power Profile

The guard operates passively across a temperature range of -40 to 250 degrees Fahrenheit, so it adds no heat, noise or electrical draw to the installation. Its open-back design allows normal airflow around the detector, preserving the sensor’s response characteristics. No power supply, wiring or maintenance is required once the guard is secured in place.

Mounting Hardware Included

The package supplies the necessary mounting hardware, letting installers fasten the guard directly over an existing flush-mounted detector without sourcing separate fixings. The clear polycarbonate construction keeps the detector visible for inspection while the sturdy shell absorbs impacts. No software, batteries or additional accessories are bundled with this model.

Highlights

  • Protects detectors from vandalism with a clear polycarbonate guard
  • UL Listed for verified safety compliance
  • Withstands extreme temperatures from -40 to 250 degrees F
  • Flush-mount design fits cleanly into ceilings or walls
  • Includes mounting hardware for quick installation

Specifications

BrandSafety Technology International
ModelSTI-8100
TypeFlush Mount

Questions about this item

How do I install the STI-8100 flush-mount guard, and which step is often missed?

Mount the base to the ceiling or wall using the included hardware, then snap the polycarbonate cover onto the base; the step often missed is ensuring the detector itself sits fully inside the guard before the cover is locked down.

What maintenance or replacement will the STI-8100 need over time?

The clear polycarbonate cover should be cleaned periodically so dust does not block the detector's sensing chamber; replace the guard if it becomes cracked, yellowed, or deformed by heat.

At what temperature limit does the STI-8100 show stress first during sustained use?

The guard is UL Listed for continuous operation from -40 °F up to 250 °F; sustained exposure near the upper limit will degrade the polycarbonate before the mounting hardware fails.

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