Total 100% Junk
Do not buy this for a solar/renewable system. This thing is correct twice a day just like a dead clock.
It has no delay when discharging. It will fall like a rock and wont display anything even close to the truth.
When charging it is even more worthless if that is even possible. It reports a battery as fully charged at 12.7 volts. They didnt even try.
I posted on their forums (they deleted) and the Ryan the technical support manager said it was designed to show how long since the last full charge and that its not designed to show state of charge.
This would be fine for an RV or boat but is beyond worthless in a PV system.
This review has votes.