its a autometer, don't remember what kind, but it's kinda messed up to begin with. So I'm going to upgrade. I am buying a panel for my gauges and I need to tell the guy what to cut it out for(size wise) and I guess I'm going to go with the electrical. ??? I just don't see how electrical could not be more accurate than a mechanical one..being as its connected and reads from the sending unit and such..