Fike 20-1161


Stopper® Dome for Strobe Only with Enclosed Back Box – Type 4X

Availability: Estimated 12 days

Condition: New
Brand: Fike
Status: Active
SKU: 141989
Manufacturer Part #: 20-1161
Secondary Part #: STI-1229


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, surfacemount and weather resistant applications. For the STI 1210/1221 series, spacer A has a four inch deep enclosed back box, spacer B has an enclosed back box molded with an integral double-gang outlet box. Spacer C has an open back for retrofit applications.

Spacer D accommodates deeper units and applications with exposed conduit electrical connections. Spacer E has an open back frame for flush-mount applications. An appliance mounting plate comes with the STI-1219/1229. Unique Enviro Kits are available for extreme conditions where dampness or water is present.

Additional information

Weight 1 lbs
Dimensions 9.37 × 4.25 × 9.37 in

Fike Corporation




Unit of Measurement

EA (Each)

Production Status



  • Protective polycarbonate cover for strobe only
  • Enclosed back box
  • Type 4X Rated
  • Easy access for service
  • UL/cUL Listed, ADA Compliant
  • See install for Light Derating Factor
  • 3 year guarantee
  • 75 in H x 7.75 in W x 4.25 in D



STI - Data Sheet