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STI Stopper II® / Weather Stopper® Cover – Red Horn Housing, Indoor/Outdoor, Optional Horn & Spacer
The STI Stopper II® and Weather Stopper® Indoor/Outdoor Protective Covers are designed to safeguard fire alarm devices and other emergency units from vandalism, dust, weather, and accidental activation. Each cover features a durable red horn housing, with configurations available in flush mount or spacer mount styles. Models may include an integrated 95 dB horn, and optional clear spacers allow compatibility with surface-mounted devices. Label variations include Custom Label, No Fire Label, or standard lens. These covers are suitable for both indoor and outdoor use, offering long-lasting protection in harsh environments while maintaining accessibility and visibility for emergency equipment.
Key Features
- Weatherproof design with IP54-rated gasket for use in outdoor or exposed locations
- Optional internal horn provides a 95 dB or 105 dB warning sound when the cover is lifted
- Available in flush or surface mount versions, with spacer kits for deeper devices
- Operates in extreme temperatures ranging from –40°F to 250°F (–40°C to 121°C)
- ADA compliant for both flush and surface installations
- Includes long-life 9V DC alkaline battery in horn-equipped models
- UL/cUL listed (S2466) and MEA approved
- Constructed from tough, clear polycarbonate to withstand impacts and environmental wear
Manufacturer Resources
VIEW SPEC SHEETS
Product Specs
- Certifications:
- ADA Compliant, UL/cUL Listed, MEA Approved
- Color:
- Clear with Red Label (or optional NR
- Horn Option:
- Optional 95 dB or 105 dB Piezo Horn
- Label Options:
- Standard, NR (No Label), CR (Custom Label)
- Material:
- Polycarbonate
- Optional Accessories:
- Spacer kits, gaskets, conduit spacers, backplates, replacement horns
- Outdoor:
- Outdoor Use (Weather Resistant)
- Spacer Depth Addition:
- 2 inches (approx. 50 mm)
- Warranty:
- 3 Years (Polycarbonate), 1 Year (Electronics)
- Dimensions:
- 7.2" W x 10.2" H x 5.5" D (Surface Mount),7.2" W x 10.2" H x 3.3" D (Flush Mount)
- IP Rating:
- IP54 (Gasketed Models)
- Mounting Options:
- Flush or Surface Mount
- Product Line:
- STI Weather Stopper II with Gaskets
- Operating Temperature:
- -40°F to 250°F (-40°C to 121°C)
- Battery Type:
- 9V DC Alkaline (included with horn models)
- Product Group:
- Safety
- Product Subgroup:
- Protective Covers
- Product Type:
- Stopper II® / Weather Stopper® Cover – Red Horn Housing, Indoor/Outdoor, Optional Horn & Spacer
Parts & Accessories