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DG

DG started the topic Mayfly data logger -9999 in the forum Mayfly Data Logger 3 months, 1 week 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!
DG became a registered member 4 years, 1 month ago

@george