0x4001 to 0x4003 ---> flow rate value 0x4004-->flow rate value unit 0x4005 to 0x4007 -->totalizer v
0x4001 to 0x4003 ---> flow rate value
0x4004-->flow rate value unit
0x4005 to 0x4007 -->totalizer value
0x4008-->totalizer value unit
0x4004-->flow rate value unit
0x4005 to 0x4007 -->totalizer value
0x4008-->totalizer value unit
