Paul__B:
Yes, but the PCB does not!
aha! I got you yeah you'r right
good news that today I calculated my consumption for this month from the electricity company meter
I found my PZEM accuracy (for the past 20 days) compared to the meter is 98.02% accurate wow!
I could not understand why it is accurate this much .. it still seems i'm reading the power of line to line devices twice