I agree with above ^^

The LC-1 does not "self" calibrate, you have to put it in calibration mode, but there are no knobs or voltage measurement needed, just let it calibrate in "free air", it takes just a few minutes.

Don't forget to calibrate it before you put it in, sounds like a dumb warning, but I got excited and threaded mine in, which required removing the AC compressor for clearance. Then I realized I had to calibrate, which meant pulling the compressor off again. Hopefully yours will be easier to get to, mine is on a down-pipe in a bad location. They are a bit longer than stock as well.

I made a video here about wb02 with respect to megasquirt, but I explain what the narrow band output 'should' do... as mentioned above, it might not act like a real o2 sensor for fuel control. Just be sure you get the correct cable color (yellow or brown) on the LC-1 if you get that one, one is 0-5v, one is simulated, I forget which off the top of my head. I did use the simulated output on my stock ECU, and it did not throw codes, but I did not leave it long before going to megasquirt.