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Sealed Optics | 密封光学

Protects from possible infestation from insects, shields air movement in front of the pyro-electric sensor and protects against adverse reflections from inside the detector housing.

 

防止昆虫进入探测器，阻挡热电传感器前的空气运动，防止探测器外壳内部的不利反射

 

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