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Weather Stopper®

Helps Prevent False Fire Alarms

This unique and patented Weather Stopper cover has helped stop false fire alarms around the world for over 40 years, without restricting legitimate alarms. Ideal for schools, hospitals, nursing homes, stores, hotels and public buildings of almost every kind.

 

Key Features

Key Features

20 Models Available

STI-1150 

STI-1150

Stopper II® with Horn Flush Mount (Indoor/Outdoor Rated), Fire Label
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STI-1150CR 

STI-1150CR

Stopper II® with Horn Flush Mount (Indoor/Outdoor Rated), Custom Label
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STI-1150NR 

STI-1150NR

Stopper II® with Horn Flush Mount (Indoor/Outdoor Rated), No Label
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STI-1150-ES 

STI-1150-ES

Stopper II® with Horn Flush Mount (Indoor/Outdoor Rated), Spanish Label
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STI-1150-FR 

STI-1150-FR

Stopper II® with Horn Flush Mount (Indoor/Outdoor Rated), French Label
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STI-1155 

STI-1155

Stopper II® with Horn and Spacer (Indoor/Outdoor Rated), Fire Label
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STI-1155-ES 

STI-1155-ES

Stopper II® with Horn and Spacer (Indoor/Outdoor Rated), Spanish Label
View Details

STI-1155-FR 

STI-1155-FR

Stopper II® with Horn and Spacer (Indoor/Outdoor Rated), French Label
View Details

STI-1155CR 

STI-1155CR

Stopper II® with Horn and Spacer (Indoor/Outdoor Rated), Custom Label
View Details

STI-1155NR 

STI-1155NR

Stopper II® with Horn and Spacer (Indoor/Outdoor Rated), No Label
View Details

STI-1250 

STI-1250

Weather Stopper® without Horn Flush Mount, Fire Label
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STI-1250-ES 

STI-1250-ES

Weather Stopper® sin Sirena Para Montaje a Ras, Español
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STI-1250-FR 

STI-1250-FR

Weather Stopper® without Horn Flush Mount, French Label
View Details

STI-1250CR 

STI-1250CR

Weather Stopper® without Horn Flush Mount, Custom Label
View Details

STI-1250NR 

STI-1250NR

Weather Stopper® without Horn Flush Mount, No Label
View Details

STI-3150 

STI-3150

Weather Stopper® without Horn with Spacer, Fire Label
View Details

STI-3150-ES 

STI-3150-ES

Weather Stopper® sin Sirena con Espaciador, Español
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STI-3150-FR 

STI-3150-FR

Weather Stopper® without Horn with Spacer, French Label
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STI-3150CR 

STI-3150CR

Weather Stopper® without Horn with Spacer, Custom Label
View Details

STI-3150NR 

STI-3150NR

Weather Stopper® without Horn with Spacer, No Label
View Details

Literature

Sales Data Sheet
Specsales - englishSpanish Specsales - spanish
Installation Sheet
Installinstall - englishconduit spacerinstall - englishSpanish Installinstall - spanish

Clive Fire Department

I now require this protection for all bar/nightclub or similar assembly occupancies and have virtually eliminated malicious false alarms at these locations. I strongly recommend these products in most new…

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FeaturesWeather Stopper® Features
Closex
Weather Stopper® design

Design

  • Larger sizes and surface mounted pull stations accommodated with STI-3100 conduit spacer.
  • Weather models have closed cell gaskets.
  • The Stopper II design is a registered trademark of Safety Technology International, Inc.
Weather Stopper® construction

Construction

  • Consists of a clear, tamperproof, tough polycarbonate shield, frame and gaskets.
  • UL Listed to U.S. and Canadian safety standards (also for custom labeling).
Weather Stopper® installation

Installation

  • When covering a pull station outside, UL requires stations to be listed for outdoor use.
  • Typical working properties of polycarbonate are -40° to 250°F (-40° to 121°C).
Weather Stopper® electronics

Electronics

  • Power source is a 9V DC alkaline battery included on standard Stopper II® (remote powered unit available).
  • “RC” models include one Form “C” dry relay contact and are capable of operating from 9-24V DC remote power or 9V DC battery power.
Weather Stopper® options

Options

  • Optional horn has a choice of 95/105 dB at one foot.
  • Standard red units have “In Case of Fire…” label unless specified with “no label” or “custom label” (extra charge for custom label).
  • Horn housing is available in red, blue, green or yellow with optional custom labeling.
Weather Stopper® other features

Other Features

  • Proven effective for more than 35 years in helping stop false fire alarms without restricting legitimate alarms.
  • Designed for outdoor use.
  • Three year guarantee against breakage of polycarbonate in normal use (one year on electro mechanical and electronic components).