Chapter V Communication
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04 is the data length of returned MLSS/TSS value, which is 4 bytes;
00 00 00 00 is the returned MLSS/TSS value 0.0mg/L, and the obtained
value divided by 10 is the current MLSS/TSS value. The range is
0.0-120000mg/L;
EA F3 is the CRC16 check code, varying with the previous data;