Details for M30 board

[nickdd]

Would the 5A clamps be accurate enough to measure loads of 1-2 Watts ?      AC220v load 2W?  it's too small for CT sensor.
No calibration needed with this M30 setup?    Yes, not need.

I would like to see some real world measurements of small loads and know what levels of accuracy I could expect with this.
My Zennio KNX KEsplus device states it has 8W resolution, which is indeed what I see in the results.

And how come there is no calibration needed, it are the same clamps that are used then M16v2