Iíve had one installed for two seasons. The battery monitor function in the first season wasnít great, but since they released new firmware it has been vastly improved. The tank monitor functions and ammeters work
very well too.
The N2K functionality keeps getting pushed out. They promise that itís coming soon, but they just move the date out each time.
I use it to monitor a single
bank. Iím a little doubtful how well it would work
(with a single
device) monitoring two banks as it uses a single negative connection, rather than separate negative connections for each bank. Obviously, that negative connection should only be connected to the negative bus (in this case a battery terminal) in one place or else the smoke might escape. So, with say a house bank and an engine
bank and a significant potential difference between the negative terminals on the two banks (for example, while charging
from an alternator
with a small voltage drop to the starter bank and a larger voltage drop to the typically more distant house bank), if the negative connection is made to the negative terminal of the house bank then the reading for the starting bank will be in error.