AEM X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge

* Independently tested at 360° Product Testing (results reported on August 31st, 2015) against 17 competitor wideband UEGO Air/Fuel Controllers. AEM X-Series Inline with 4.9LSU wideband sensor and AEM X-Series Wideband UEGO AFR Gauge with 4.9LSU sensor recorded the fastest response times. ** Wideband UEGO sensors are wear items and their lifespan is determined by many factors including contamination from leaded fuels, automotive fluids, particulates, mechanical or thermal shock and from being unheated and exposed to the exhaust stream. Free-air calibration may correct drift as a sensor ages, but it is recommended that they are replaced as part of your vehicle's maintenance program. When performing free-air calibration, please follow the procedure outlined in the instruction manual. Display Gasoline values from 8.0:1 to 20.0:1 AFR Display Lambda values from .55 to 2.00 OBDII Output Gasoline values from 8.0:1 to 20.0:1 AFR OBDII Output Lambda values from .55 to 2.00 0-5V Output Gasoline values from 8.5:1 to 18.0:1 AFR (Requires Wiring) 0-5V Output Lambda values from .58 to 1.23 (Requires Wiring) 0-5V Output E85 values from 5.7:1 to 12.0:1 AFR (Requires Wiring) 0-5V Output Ethanol values from 5.2:1 to 11.0:1 AFR (Requires Wiring) 0-5V Output Methanol values from 3.75:1 to 8.0:1 AFR (Requires Wiring)