Very good, very versatile. The interface is a little tricky to deal with having only one button, but it works. The connections on the back are meant for REALLY THICK cables (well, 100A cables), sou if you're going to connect a thinner cable (2.0mm2 or AWG 16) you will need crimped terminals. To navigate the menu: 1 click changes the screen or the setting you are adjusting (next number or decimal). 2 clicks increase the number/value (cost of electricity for example) 3 clicks decrease the number/value holding the button resets the values It stores the kWh and cost even if you turn if off. Very satisfied with the product.
Thanks