Are the measurements cumulative, i.e. is the sum of several measurements (kWstd) over a period of time displayed, or is the meter set to zero when the current is interrupted?
I use it to check (and calculate) the electricity consumption of the Tesla, as the parking space is rented. When the car is not in the parking space, the meter in the car keeps track. Has never reset to zero so far. Assume the internal battery will provide storage for many weeks.