opensensemap-client
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    Variable COORDINATES_WGS84Const

    COORDINATES_WGS84: Struct<string, null> = ...

    4 WGS84 coordinates separated by commas. You can use a tool like http://bboxfinder.com|bboxfinder.com to mark the box

    "7.645503,51.962280,7.646168,51.962515"