侵入检测。主动式红外线检测器。专用标准。
Intrusion detection - Active infra-red detectors - Specific standard.
M500采用高能量的光学设计和敏感的DLATGS检测器，使红外线区域有优越的分辨率。
The M500 uses a high energy optical design and a sensitive DLATGS detector for excellent resolution over the full infrared range.
M500采用高能量的光学设计和敏感的DLATGS检测器，使红外线区域有优越的分辨率。
The M500 uses a high energy optical design and a sensitive DLATGS detector for excellent resolution over the full infrared range.
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