Hi Whilst driving for miles and miles with my work I was pondering over what I have left to do to finish the boat, and suddenly my thoughts went to the solar. I have already got 3 x 185W panels in storage and I have the cables through the roof, into a DC isolator and then into a Victron MPPT 150/35, however I have no way of knowing what is incoming once I have it set up ready for use, should I purchase something to tell me what the solar is producing, and if my batteries are full? is there an item I can wire in, or am I having a blonde moment again.