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    Was bedeuten diese Lichter?
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    Was bedeuten diese Lichter?

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    1. AutoModerator on

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    3. xMetus on

      That is a CO2 warning light. If the air gets to used, it will turn yellow and red, indicating that you should open windows.

    4. qarlthemade on

      I know these as noise indicators for open office areas. yellow or red -> you’re talking too loudly. shush.

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