STI STI-1217


Stopper Dome for Horn/Speaker/Strobe with Open Back Box, Clear

Availability: Estimated 10 days

Condition: New
Brand: STI
Status: Active
SKU: 10676
Manufacturer Part #: STI-1217


These virtually indestructible covers (slotted for horn or speaker units and solid for strobe-only alarms) are designed to stop vandalism and accidental damage. Molded of clear, thick, UV-stabilized polycarbonate material, they are backed by a three year guarantee against breakage in normal use. Slots in the STI-1210, 1215, 1217 and 1219 allow the horn to be heard. The STI-1221, 1225, 1227 and 1229 are for strobes only. Many tough, clear spacers are available for larger strobe/horn units, retrofits, surface- mount and weather resistant applications.

Additional information

Weight 1.85 lbs
Dimensions 7.37 × 7.37 × 4.50 in

Safety Technology International




Unit of Measurement

EA (Each)

Production Status



  • UL Listed to U.S. and Canadian safety standards.
  • Slotted cover allows horn to be heard.
  • Helps prevent accidental and intentional damage or vandalism.
  • Easy access for service.
  • UV-stabilized.
  • For surface mounted units.
  • Typical working properties of polycarbonate are -40° to 250°F (-40° to 121°C).
  • Lifetime guarantee against breakage of polycarbonate in normal use.


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