You can tune without datalogging.

so this unit will not hook up with the rtek 2.1? and the 0-5 isnt linear correct?

I am not familar with the rtek 2.1,
0-5 wideband linearity chart - If you email us direct we can send you the chart.

I've tuned without data logging. Yeah its nice, but its not necessary.

did you know we use the latest LSU Bosch 5 wire o2 sesnor. Its the new 4.9 :)

I had my wideband stolen out of my car (just the gauge/controller though) so I may be looking into this in the near future...

ahh, dude that sucks..I know the feeling of walking up to your vehicle and noticing it was broken into and it is sickening.

Holiday specials on Widebands..all on sale and 60mm Premiums series wideband kits are only $189 !!!!

All NEW Prosport Digital widebands now have 0-5v output signal allowing you to datalog.
More features at the same low price..