Simplex 2903-9001

Rather than having a xenon strobe as most modern alarms do, this strobe plate has an actual light bulb that illuminates the lens. Unlike a strobe, the light does not flash, unless it is being coded to do so.

  • Brand
  • Model 2903-9001
  • Manufacturer Unknown
  • Type Alarm (Light Plate)

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Radionics D571S

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I always associate these re-branded Wheelock AS’s with Walmart. I’m sure others out there can also understand.
Simplex 4903-9459

Simplex 4903-9459

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This unit is an addressable horn strobe. It’s what my elementary school had installed in the classrooms.
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