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STI borrowed from nature's master builder, the spider, to create a web of protection from vandalism and accidental damage with these UL Listed wire guards. They are constructed of 9-gauge steel wire with corrosion resistant polyester coating or 9-gauge stainless steel wire. Together, they cover virtually every smoke detector model available today.
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STI-9601 Steel Web Stopper® Guard

STI-9601 Steel Web Stopper® Guard
STI-9601-SS Steel Web Stopper® Guard

STI-9601-SS Steel Web Stopper® Guard
STI-9602 Steel Web Stopper® Guard

STI-9602 Steel Web Stopper® Guard
STI-9604 Steel Web Stopper® Guard

STI-9604 Steel Web Stopper® Guard
STI-9604-SS Steel Web Stopper® Guard

STI-9604-SS Steel Web Stopper® Guard
Description N/A STI borrowed from nature's master builder, the spider, to create a web of protection from vandalism and accidental damage with these UL Listed wire guards. They are constructed of 9-gauge steel wire with corrosion resistant polyester coating or 9-gauge stainless steel wire. Together, they cover virtually every smoke detector model available today.
Model Type N/A Steel Web Stopper®, Low Profile, Flush Mount N/A Steel Web Stopper®, Low Profile, Flush Mount, Stainless Steel N/A Steel Web Stopper®, Low Profile, Surface Mount N/A Steel Web Stopper® for Mini Smoke Detectors, Flush Mount N/A Steel Web Stopper® for Mini Smoke Detectors Flush Mount, Stainless Steel
Overall Width N/A 8.25 in210 mm N/A 8.25 in210 mm N/A 8.25 in210 mm N/A 7 in178 mm N/A 7 in178 mm
Overall Height N/A 2.75 in70 mm N/A 2.75 in70 mm N/A 4.25 in108 mm N/A 3.25 in83 mm N/A 3.25 in83 mm
Warranty1 N/A 3 y
Application N/A Wire Guards
General Information N/A
  • Helps protect smoke detectors from vandalism and accidental damage.
  • Models to fit virtually all smoke detectors available today.
  • May be spray painted once prior to installation to match decor.
Design N/A Patented (D368,670) web-like octagon shape of 9-gauge steel wire makes them extremely difficult to break.
Construction N/A
  • Steel Web Stoppers have corrosion resistant polyester coating stainless steel models have no coating).
  • UL Listed to U.S. safety standards S3504) for any UL Listed detector, does not require any sensitivity adjustment.
  • UL Listing for STI-9713 (S3504) with detectors listed on reverse.
  • CSFM (7300-1416:100) Approved 9600 Series only.
Installation N/A
  • Fast and easy installation.
  • Simple removal for servicing detector.
Options N/A
  • Tamper resistant hardware is available.
  • Stainless steel versions available for flush mount or surface mount.
Testing N/A UL Listed No. S3504 for use with Listed low profile smoke detectors CSFM Approved N/A N/A UL Listed No. S3504 for use with Listed low profile smoke detectors CSFM Approved N/A UL Listed No. S3504 for use with Listed low profile smoke detectors CSFM Approved N/A
Accessories N/A KIT-82 - Tamper resistant stainless steel screws, #8 x 1-1/2 in. snake eye (quantity 4)
KIT-19038 - Spanner bit for tamper resistant screws with 5/16 in. hex drive
STI-8171 - Polycarbonate mounting backplate for flush and surface mount models. Recommended for irregular and unstable mounting surfaces such as drop ceilings and beams 		N/A KIT-82 - Tamper resistant stainless steel screws, #8 x 1-1/2 in. snake eye (quantity 4)
KIT-19038 - Spanner bit for tamper resistant screws with 5/16 in. hex drive
STI-8171 - Polycarbonate mounting backplate for flush and surface mount models. Recommended for irregular and unstable mounting surfaces such as drop ceilings and beams 		N/A KIT-82 - Tamper resistant stainless steel screws, #8 x 1-1/2 in. snake eye (quantity 4)
KIT-19038 - Spanner bit for tamper resistant screws with 5/16 in. hex drive
STI-8171 - Polycarbonate mounting backplate for flush and surface mount models. Recommended for irregular and unstable mounting surfaces such as drop ceilings and beams 		N/A KIT-82 - Tamper resistant stainless steel screws, #8 x 1-1/2 in. snake eye (quantity 4)
KIT-19038 - Spanner bit for tamper resistant screws with 5/16 in. hex drive 		N/A KIT-82 - Tamper resistant stainless steel screws, #8 x 1-1/2 in. snake eye (quantity 4)
KIT-19038 - Spanner bit for tamper resistant screws with 5/16 in. hex drive
Additional Information N/A Backed By A Three Year Guarantee
As all STI protective covers, these Steel Web Stoppers are backed by a three year guarantee against breakage in normal use. Highly recommended for areas where abuse to smoke detectors is severe. Installation is easy with anchors and screws provided. Models available for both flush and surface mount detectors.
Note N/A STI also offers other models of Steel Web Stoppers® to cover smoke beam detectors, PIRs, bells, clocks, exit signs and similar devices.
  • 1 Three year guarantee against breakage in normal use.