High accuracy, operation not mature

The device has a good resolution to specifically measure the standby power consumption. The professional version has to storage for 10 devices. Here can be read without mains power only of the current channel! The measurement recording starts immediately when the machine is connected to the grid. This way you can generate meaningful accumulated consumption values ​​only tricky operation:
Here it is - how often - the software of the weakest part of the equipment and anything but user-friendly.

Therefore, I give only 3 Stars.