Pow r3 accuracy

Free discussion
1

Hi, I need some help… I have Pow R3 to control my electric car charge, and after checking the consumptions, it happens Electricity bill says I have consumed 414Kw/h and pow r3 says I have consumed 520kw/h for the same period!!!

I can´t trust pow r3 then so it is a big problem. Any ideas how to calibrate it to make it measure real consumption??

Thanks!!

2

So big gap! dose the power bill always less then the R3 calculation or sometimes it more then it?
Better to ask SONOFF team how the calculate works, i will forward this issue to them too.