The picture above is a display on my Hunter 420 (built 2000) which shows the status of the boat's starter and house batteries and also whether the inverter is on or off. Its size is about 4"x2". It stopped working when all batteries died but it did not restart once all batteries were brought back to life.
I also understand that Heart Interface is no longer in business and that panels which look this on my boat (and now made by Xandrex) have panels that look exactly like mine are huge, 17"x10" or so.
So now my question is, if the one shown, is found not to be operable, where do I find one to replace it and same dimensions? Is there anyone who deals in used items such as this?