On the hardware side the unit works well. The current clamp is easy to place and has a diameter sufficient for my 16mm2 power cable. The receiver is placed ten meters from the transmitter and reception is good. On the software side everything is minimalist. You can not adjust the time interval between 2 measurements that seems to be around 30 seconds. At the display level I only use the current display extent because the rest is useless. On the PC software, which is offered is basic and disappointing. Finally the only interest of this device without having to move an approximate measure of its consumption in real time.