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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. The STI-1221 are for strobes only. Many tough, clear spacers are available for larger strobe/horn units, retrofits, surfacemount and weather resistant applications. For the STI-1221 series, spacer A has a four inch deep enclosed backbox, spacer B has an enclosed backbox 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.
Unit of Measure

Specifications

Model Information

 N/A Strobe Damage Stoppers® cover and enclosed backbox, 4 in. deep, weatherproof with drain vent, Type 3R

Spacer Description

 N/A Enclosed backbox, 4 in. deep (includes neoprene gasket)

Operating Temperature

 N/A -40 to 121 ºC-40 to 250 ºF

Power Source

 N/A 9 Volts (V) DC Alkaline Battery

Dimensions

Overall Height

 N/A 8.5 in216 mm

Overall Width

 N/A 6.5 in165 mm

Overall Depth

 N/A 6.25 in159 mm

Key Features

General Information

 N/A
  • Helps prevent accidental and intentional damage or vandalism.
  • See chart for light and sound loss information.
  • Easy access for service.

Design

 N/A
  • Various backbox and spacer depths are available to accommodate special applications.

Construction

 N/A
  • Covers are UV-stabilized.
  • Typical working properties of polycarbonate are -40º to 250 ºF (-40 º to 121 ºC).

Options

 N/A
  • Enviro Kit available for harsh conditions.
  • See STI-1229HTR heated Type 4X enclosure for strobes in freezing conditions.

Approvals and Warranty

Testing

 N/A It has been tested and approved or listed by:
  • Underwriter Laboratories and Canadian (UL) File S7025
  • Underwriters Laboratories Inc. (cUL) approval for UL 1638 only
  • California State Fire Marshal (CSFM) needs local approval
  • MEA STI-1210 and STI-1221 series only
  • Underwriter Laboratories (UL) Listed for fire voice speakers for STI-1210 series only
  • Americans with Disabilities Act (ADA) Compliant
Warranty1 N/A 3 y

Accessories

Accessories

 N/A KIT-84 - Tamper resistant screws
KIT-121 - Enviro Kit for D and E models
KIT-122 - Enviro Kit for B and C models
KIT-06297D - "D" spacer only
KIT-06297E - "E" spacer only
STI-1283 - Backplate for "D" and "E" models
KIT-19038 - Bit for tamper resistant screws
KIT-6297B20 - 3/4 in. conduit hub for "B" and "C" backbox outdoor rated

Performance Review Manufacturer

Performance Review Manufacturer

 N/A AMSECO-(SL24W-153075 CLEAR, A, B, G or R, SL24C-3075110 A, B, G or R, CSL24W-A, B, G or R, CSL24C-A, B, G or R), MIRCOM (FS-240), POTTER ELECTRIC (AS-24- 153075R, AS-24-153075W)
Light Loss - 26%

DETECTION SYSTEMS (GES24 Series), GENTEX (GES24 Series), HARRINGTON SIGNAL (GES24 Series), NATIONAL TIME & SIGNAL (GES24 Series), SECUTRON (GES24 Series)
Light Loss - 31%

ADT SECURITY (ADTG1-V Series), EST/EDWARDS (G1-V Series, G1-HV Series, G1-HOV Series, EG1-V Series, EG1-HV Series, EG1-HOV Series), HONEYWELL (XLSG1-V Series, XLSG1-HV Series, XLSG1-HOV Series), MIRCOM (MG1-V, MG1-HV, MG1- HOV Series), SIEMENS (G1-V Series), ZITON PTY LTD. (ZG1-V Series)
Light Loss - 34%

AMESCO (SL24W-153075), SYSTEM SENSOR (SS24110ADA)
Light Loss - 37%

EST/EDWARDS (2440S, 202 Series), HONEYWELL (XLS202 Series), MIRCOM (MS Series), MIRTONE (MG1-V Series), SIEMENS (202 Series)
Light Loss - 45%

FARADAY LLC (2700)
Light Loss - 57%

SYSTEM SENSOR (P2, PC2, P4, PC4, SX, SC)
Light Loss - 61%
  • 1 Three year guarantee against breakage of polycarbonate in normal use.