does anyone know the main differences between these?? DONT say look on their website-it looks like that is totally screwed up. Lists many things not included in the ultra that I am pretty sure are? Also lists the edge as having an 8in screen and the ultra only having a 4?? Is that correct? Also says the ultra can not do 4 graph live data, functional tests or bi-directional control??? thanks!

Ken Schwarz
Owner/Technician
KS Auto Repair
Middletown, Rhode Island, USA