Hi @mking007, we install 4GB SD cards. If we coarsely approximate that a CSV record is 96 bytes (it's actually less I think), then that is room for 2^32 / (3x2^5)= 2^27/3, or over 44 million records. At default 5 second logging rates, that should last over 7 years. That is incidentally about how long the RTC coin battery should last add well.
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