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This range of audio/visual combination units may be assembled from Cooper MEDC’s range of beacons and sounders. Mounted on a sturdy, drilled, painted, 316 stainless steel plate, the units are pre-wired as standard such that a single input operates both the sounder and beacon simultaneously.

Units are available for use in potentially explosive atmospheres and dedicated units are now available for use in industrial and marine environments.

Data Sheets
DB3/SM87 HXB (338 KB) (PDF)
Certification ATEX: Ex II 2G Exd IIC T4/T5.
IECEx: Exd IIC T4/T5.
UL: Class I, Div. 2, Groups C & D.
Area Classification Zone 1 and Zone 2 use.
Voltage 24V d.c., 48V d.c., 240V a.c.
Beacon LM25 or stainless steel.
Sounder Corrosion-free GRP.
Beacon Standard: SM87 (Xenon 5J).
  Option: Filament (10W). Flourescent (≤10W). LED (≤192cd)
Sounder Standard: DB3 (long flare) ≤ 115dB(A) at 1 metre.
  Option: DB3 (short flare) ≤ 108dB(A) at 1 metre
  (Note: Close coupled unit only available ATEX certifified).
Dimensions (mm) 420 (height) x 220 (width) x 337 (depth).
Options Refer to data sheet. Specify when ordering.



  • Zones 1, 2 and safe area use.*
  • ATEX approved Ex II 2GD.*
  • UL listed Class I, Div. 1 & 2, Groups C & D.*
  • IP66 and IP67.
  • Certified temperature: –55°C to +70°C.*
  • Corrosion free GRP beacon/sounder.
  • Beacon available as xenon, filament, fluorescent or LED.*
  • Xenon: up to 21J.
  • Filament: up to 100W.
  • Fluorescent: up to 39W.
  • LED: up to 192cd.
  • Sounder: up to 115dBA output at 1 metre.
  • All stainless steel (316), epoxy painted backplate.

*Model dependent.

Other combinations of beacons and sounders are available – please contact Cooper MEDC Technical Sales for detailed specifications.