dn-4936:A1 • 1/7/10 — Page 1 of 2
STI Steel Web Stoppers
Detector Covers
Miscellaneous
dn-4936:A1 • K-275
General
STI Steel Web Stoppers are a simple, tough, low cost, easy-to-
install protective cover for smoke and heat sensors where
damage to the device may occur. They are especially appro-
priate for areas where physical abuse to detectors is great,
such as correctional facilities and public buildings in high-crime
districts. Their strong, durable, weblike design and construc-
tion of 3/16” steel wire permit the Stoppers to take tough
knocks in stride. Their open design allows unrestricted airflow
to the fire alarm sensor, so that no change in the device appli-
cation or spacing is required.
Features
• Two models (one for high-profile and one for low) fit virtually
all smoke detectors, while a third model fits heat detectors
(both rate-of-rise and fixed).
• L.E.D. indicator on detectors remains visible. Easy installa-
tion and easy removal for servicing detectors.
• Aesthetically appealing.
• Same positioning of installation holes as STl’s polycarbon-
ate Smoke Detector Damage Stoppers — thus they are
interchangeable.
• Construction of 3/16" steel wire in a weblike, octagonal
shape is extremely difficult to break.
• Easy installation.
• Optional surface mount models.
Agency Listings and Approvals
These listings and approvals apply to the modules specified in
this document. In some cases, certain modules or applications
may not be listed by certain approval agencies, or listing may
be in process. Consult factory for latest listing status.
•UL Listed: S3504
•CSFM: 7300-1416:100
•MEA: 49-00-E
Product Line Information
DETECTOR COVER
STI9601: Low-profile smoke detector guard.
STI9609: High-profile smoke detector guard.
STI9604: Heat detector guard.
SURFACE MOUNT MODELS
STI9602: Low-profile smoke, surface mount guard.
STI9605: High-profile smoke, surface mount guard.
STI9610: Heat detector, surface mount guard.
A damaged smoke detector or heat detector could make an
entire fire alarm system inoperable and negate the early
warning response for which it was intended. To maintain
critical credibility, it may be necessary to install a physical
guard to prevent damage by accident or vandalism. STI’s
Steel Web Stoppers do exactly that.
NOTE: These devices should only be used in areas where abuse
of smoke detectors or heat detectors is causing false fire alarms or
high maintenance costs.
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