How long do the digital Tach / hour meters (Analouge Tacho, digital hours, not botherd whose brand) remember the hours for before you need the boat battery to keep the memory alive?
Also anyone know how easy they are to reset? If "very", anyone got one gathering dust?
Having just rebuilt it, I want to put an hour meter on. Two options are a generic thing inside the console / cowl, or one of these combined ones "out on top".