STI Smoke & Heat Detector Cage

The STI-9604 and STI-9605 Steel Web Stoppers® are heavy-duty detector cages designed to protect smoke and fire detection devices against vandalism, misuse and accidental damage.

Constructed from heavy-duty steel wire with a corrosion-resistant plastic coating, their web-like octagonal design provides a robust physical barrier while allowing the protected detector to continue operating normally.

Both models are intended for locations where detectors may be exposed to damage. The STI-9604 is designed for flush-mounted installations, while the STI-9605 provides a surface-mounted alternative.

• STI-9604 / STI-9605

• Heavy-duty steel wire construction

• Corrosion-resistant plastic coating

• Helps protect detectors against vandalism and accidental damage

• Patented D368,670 web-like octagonal cage design

• STI-9604 suitable for flush-mounted installations

• STI-9605 suitable for surface-mounted installations

• Fast installation and simple removal for detector servicing

• Three-year guarantee against breakage in normal use

• UL Listed as part of the STI-9601 to STI-9610 series