Fire alarm detection devices and control equipment

Uniclass category Pr_75_80_30

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Optical beam smoke detector (end to end)

Optical beam smoke detector (end to end)

NBS

Generic optical beam smoke detectors with transmitter and receiver.
Optical beam smoke detector (reflector)

Optical beam smoke detector (reflector)

NBS

Generic optical beam smoke detectors with transmitter and reflector.

Showing 1-2 of 2

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