Hi Trevor,
I think the Innovate systems are manufactured with data logging in mind. If you don't want , or need, to record what your engine is doing, then you may want to look around.
I have LC-1, SSI-4, XD-1. I use an older laptop for my data-logging, late 90's vintage, with a serial port, for recording. You don't really need the XD-1, if you're using the computer. The XD-1 is a nice touch when you don't have the computer on board
Right now, I'm only using two of the five channels available. (AFR and RPM) But I have plans for the vacant channels.
I can't believe how much time I wasted reading spark plugs, in the old days. Any AFR meter is better than nothing.