Which is the best AEM, Innovate, Zeitronix..... ????

All those are pretty accurate from what I've seen so now it all depends on what you're looking for in a unit. Do you just want a gauge that displays an o2 reading? Would you like datalogging capability with internal storage? Ease of installation? Laptop compatibility? Wideband as well as measurements of other readings? How much money are you looking to spend? Would you like a gauge/data logging combo?



Blown.