Batteries like other at the beginning empty. In order that the display disappears immediately after unplugging. This is all the more annoying, as some display icons are so small that they. Can not read so eig (eg "kWh"). The numbers of the measurement are large enough for the units it fails. One must therefore "by click" and know that eg Hz come volts. It all sounds feasible, but in my case, this means that freezer pull out, plug adapter clean. Angular you do not see it, from before the cabinet is not enough, the arm back and the display is too small. If you could pull out now, the values remained so due to the batteries get, but they are so empty ... Using the example, you can VLT. understand this may be missing power as disturbing. I have not yet returned because mirder effort was too great. But the provider should respond by itself even in such reviews, I'm not so the first.
I could not enter the price of electricity, possibly the mhängt also together with the batteries.
Otherwise, the handling is easy, whether the measured values are correct, I have not checked, but I suppose.
In summary: the device, but a lot of trouble by already empty delivered at the beginning of batteries and an ad that is cross consistently small.