You can read both engines at the same time, is that correct?

as a boat mechanic that works on all flavors and most are fishing vessels around here, laptops just always manage to have a dead battery at the time you need it. i have a few extra laptops with solid state drives but was thinking a hand held scanner might be better in the rough and tumble fishing and outboard world

thats what I found out looking around,,did find a copy for sale on Iboats I believe.I have diacom and love it.

Depends how the engines are rigged , ie communication buss between them or not.

As far as I know there is nothing available that will allow you to look at both engines at the same time. The closest you could get would be to install a mercury vessel view if you have smartcraft engines but that won't give you much diagnostics capability.

My local marine mechanic was able to hook to both of them and compare readings simultaneously. He may of had the merc software, I'm not sure.