19/30385840 DC
BS EN 50131-2-4. Alarm systems. Intrusion and hold-up systems. Part 2-4. Requirements for combined passive infrared and microwave detectors
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19/30385840 DC
Standard No.
19/30385840 DC
Release Date
2019
Published By
British Standards Institution (BSI)
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19/30385840 DC
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19/30385840 DC
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