This product works, but what say neither the sales nor the descriptive leaflet accompanying the device is that the scope is limited to about 15 meters of wire 220v ..... or at any break between two parts contiguous. Furthermore no information either when phase EDF network in its housing or business. In this case must be taken to find 220 of the same phase, +/- 100 either pay more for additional housing to mount (or raise) in the electrical panel. Perhaps a good product, then, but a severe lack of information prior to purchase. for me it's an unnecessary purchase since I wanted "transport" my internet in a remote annex building over 35 meters!
