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DG

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    DG started the topic Mayfly data logger -9999 in the forum Mayfly Data Logger 7 months ago

    CDT sensor reading on Mayfly monitor reads -9999.  Unable to find any issues with sensor, wires.  Can’t figure out how to disconnect Grove cable in order to disconnect and reconnect, as per instructional video.  Don’t know what a “headphone jack” looks like!

    HELP!

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    DG became a registered member 4 years, 5 months ago