This instrument is well suited to, for example, to study the various mobile phones or other devices with different cables. Thus, I can tell the differences in some cables and sort out these. The anchor 36 Watt 5 Volt charger a very good combination for me. It is the instantaneous power and the total load volume displayed. The aforementioned reseten by holding down the button is a bit strange, because always the next memory will be deleted and not the current one.