Which CT clamps for the N30 or other boards N10/N20

[admin]

Yes, you are right. acutally if you use "voltage" output sensor, also can work well, just accuracy is slightly affected.
you not need to calibration. the ARM cpu already do it. if you want do it, just modify yaml in ESPHome, multiplied by a coefficient.
we suggest you download KCS v3 firmware, here is online guide details: https://www.kincony.com/how-to-use-kcsv3...meter.html