STI Horn/Strobe & Strobe Damag...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$55.30
STI Horn/Strobe & Strobe Damage Stopper® Series – Polycarbonate Protective Covers

STI Horn/Strobe & Strobe Damage Stopper® Series – Polycarbonate Protective Covers

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Model: STI-1210A

In Stock (leaves warehouse same day if ordered before 3pm ET)

$55.30
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STI Horn/Strobe & Strobe Damage Stopper® Series – Polycarbonate Protective Covers

The STI Horn/Strobe & Strobe Damage Stopper® Series offers virtually indestructible protective covers for notification appliances, designed to prevent vandalism, accidental damage, and misuse. Each cover is molded from thick, clear UV-stabilized polycarbonate, providing rugged protection while ensuring devices remain fully visible and accessible for service.
Models for horn/strobe combinations feature slotted covers to allow alarm sounds to be heard clearly, while strobe-only models have solid covers for maximum lens protection. With multiple spacers and back box options—including enclosed boxes, conduit knockouts, and flush-mount frames—the Damage Stopper line adapts to standard, retrofit, surface-mount, and even weather-resistant applications.

Key Features

  • Helps prevent accidental and intentional damage or vandalism to notification appliances.
  • Maintains clear visibility of horn/strobe and strobe-only devices while providing protection.
  • Backed by a three-year guarantee against breakage of the polycarbonate cover in normal use.
  • Available with multiple spacer depths and mounting configurations to fit various applications.
  • Slotted covers (for horn/strobe models) allow sound to pass clearly without obstruction.
  • Solid covers (for strobe-only models) offer maximum protection for lenses.
  • Made of clear, UV-stabilized polycarbonate for impact resistance and long-term clarity.
  • Withstands extreme environmental conditions: -40°F to 250°F (-40°C to 121°C).
  • Spacers A–E accommodate enclosed back boxes, conduit knockouts, and flush-mount setups.
  • Enviro Kits available for harsh or damp conditions.
  • NEMA 4X models provide additional weather protection.
  • Compatible accessories include mounting plates, replacement glass, and gaskets.
Spacer STI‑1210 Series Horn/Strobe Covers STI‑1221 Series Strobe Covers
  H W D H W D
A 8.5 in.
(216mm)		 6.5 in.
(165mm)		 6.25 in.
(159mm)		 8.5 in.
(216mm)		 6.5 in.
(165mm)		 6.25 in.
(159mm)
B 8.5 in.
(216mm)		 6.5 in.
(165mm)		 3.5 in.
(89mm)		 8.5 in.
(216mm)		 6.5 in.
(165mm)		 3.5 in.
(89mm)
C 8.5 in.
(216mm)		 6.5 in.
(165mm)		 4.75 in.
(120mm)		 8.5 in.
(216mm)		 6.5 in.
(165mm)		 4.75 in.
(120mm)
D 8.5 in.
(216mm)		 6.5 in.
(165mm)		 5.75 in.
(146mm)		 8.5 in.
(216mm)		 6.5 in.
(165mm)		 5.75 in.
(146mm)
E 8.5 in.
(216mm)		 6.5 in.
(165mm)		 4 in.
(102mm)		 8.5 in.
(216mm)		 6.5 in.
(165mm)		 4 in.
(102mm)

VIEW SPEC SHEET

Manufacturer Resources

Product Specs

Accessories:
Spacers A–E, Enviro Kits for wet conditions, Appliance Mounting Plates
Applications:
Protects horn/strobe alarms, strobe-only devices, and similar appliances
Certifications:
UL/cUL Listed
Cover Type:
Slotted (Horn/Strobe) or Solid (Strobe Only)
Material:
Clear UV-Stabilized Polycarbonate
Mounting Options:
Spacer A – 4" Enclosed Back Box, Spacer B – Double-Gang Outlet Box, Spacer C – External Tabs, Spacer D – Conduit Knockout, Spacer E – Flush Mount Frame
Parent SKU:
STI-HORN-STROBE-DAMAGE-STOPPER-SERIES
Product Line:
STI Horn/Strobe & Strobe Damage Stopper® Series
Sound/Light Loss:
Minimal loss (see manufacturer data chart for specifics)
Special Rating:
Standard or NEMA 4X (select models)
Temperature Range:
-40°F to 250°F (-40°C to 121°C)
Warranty:
3 Years on Polycarbonate Housing
!