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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. 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 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.
STI Horn/Strobe Damage Stoppers®
Unit of Measure
Items STI-1210A Horn/Strobe Damage Stoppers® Pull Station Protective Cover
STI-1210A
STI-1210A Horn/Strobe Damage Stoppers® 		STI-1210B Horn/Strobe Damage Stoppers® Pull Station Protective Cover
STI-1210B
STI-1210B Horn/Strobe Damage Stoppers® 		STI-1210C Horn/Strobe Damage Stoppers® Pull Station Protective Cover
STI-1210C
STI-1210C Horn/Strobe Damage Stoppers® 		STI-1210D Horn/Strobe Damage Stoppers® Pull Station Protective Cover
STI-1210D
STI-1210D Horn/Strobe Damage Stoppers® 		STI-1210E Horn/Strobe Damage Stoppers® Pull Station Protective Cover
STI-1210E
STI-1210E Horn/Strobe Damage Stoppers®
Description N/A 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 allow the horn to be heard. For the STI-1210 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.
Model Information N/A Horn/Strobe Damage Stoppers® cover and enclosed backbox, 4 in. deep, weather resistant N/A Horn/Strobe Damage Stoppers® cover and enclosed backbox with double-gang outlet box N/A Horn/Strobe Damage Stoppers® cover open backbox with external mounting tabs N/A Horn/Strobe Damage Stoppers® cover and open backbox with conduit knockout N/A Horn/Strobe Damage Stoppers® cover and open backbox for flush mount
Overall Height N/A 8.5 in216 mm
Overall Width N/A 6.5 in165 mm
Overall Depth N/A 6.25 in159 mm N/A 3.5 in89 mm N/A 4.75 in120 mm N/A 5.75 in146 mm N/A 4 in102 mm
Spacer Description N/A Enclosed backbox, 4 in. deep (includes neoprene gasket) N/A Enclosed backbox with double-gang outlet box N/A Open backbox with external mounting tabs N/A Open backbox with conduit knockout N/A Open backbox for flush mount
Operating Temperature N/A -40 to 121 ºC-40 to 250 ºF
Power Source N/A 9 Volts (V) DC Alkaline Battery
Sound Loss for Horns (Amseco Audible Horn Sounders) N/A
Sound Loss for Speakers (Siemens Adapter Series (0.5, 1, or 2 watt taps only)) N/A
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.
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
  • Underwriter Laboratories (UL) Listed for fire voice speakers
  • Americans with Disabilities Act (ADA) Compliant
Warranty1 N/A 3 y
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 N/A 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, XLSG1-HV, XLSG1-HOV Series), MIRCOM (MG1-V, MG1-HV, MG1-HOV Series), SIEMENS (G1-V Series), ZITON PTY LTD (ZG1-V Series)
Light Loss - 40%

EST/EDWA RDS (2440S, 202 Series), HONEYWELL (XLS202 Series), MIRCOM (MS Series), MIRTONE (MG1-V Series), SIEMENS (202 Series)
Light Loss - 43%

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)SYSTEM SENSOR (SS24110ADA)
Light Loss - 47%

SYSTEM SENSOR (P2, PC2, P4, PC4, SX, SC)
Light Loss - 53%
  • 1 Three year guarantee against breakage of polycarbonate in normal use.