Does anyone know where A good wideband o2 can be picked up for $300 or under? I Have a laptop but would prefer to have a gauge. Thanks 
Google for Zeitronix
FJO wideband comes with a digital display off hand i can’t remember the price tho, it might be a lil more?
found the Zeitronix one, seems very decent, ive got the laptop and everything setup - i was just hoping I might find one local and not have to wait for shipping 
fuck zuitronix
innovative LC-1 under 200 clams with the sensor.