Measures also small services below 1 Watt correctly and can not be irritated by reactive power. Not even by non-linear, such as in electronic switching power supplies. I compared it with several other instruments. Now the ELV was of all the most accurate in this price range, so five stars. Other Power costs gauges show when small Verbbräuchen around 10 watts too high values and measure the reactive power with you. For me, the basic version has completely been sufficient, since I do not need saving. Very low own consumption with ca.0,3 watts without light Very easy to read, white backlit display.
