I bought the Innova 3110 thinking I only needed one for OBDII. I wish now I had gotten at least a 3120 model as I find I'm needing one more and more that can also read OBDI as well. Wasn't that much more for the additional features. Best price I have found are at Amazon. Ron
That's one of the reasons we are going with the OTC. We can get expansion kits for OBD I, TPMS, AirBag/SRS, etc. We don't see a need now, but like you, we may need it later.