Compare with the display
After a few minutes compare power, voltages and energy in HEMS with the device display or the manufacturer's app.
Run the verification wizard
On the device page open map verification and confirm the values. Confirmations from several clients change the driver status to verified.
Report differences
Wrong power sign, values 10 or 1000 times too large — report via “Report a problem” together with a reading from the device taken at the same moment.