This stuff here is convenient, I know now that my TV consumes electrical appliances, computer, fridge, ... Too bad for setting the price of KW / h it is not more specific than that ... he really misses one more digit after the decimal point, it is a shame !!! :( Second downside: I do not know if I have bad luck, but my package was not delivered by mail (but "Private Parcels"), and it took 12 days longer than another item delivered by Amazon, commissioned the same day !!! So, I would have put 4 stars at the device, but now with the delay of "Package Private": 3 stars.