AEM Afro Sensor Controller X-Series Wideband UEGO Gauge with Obie Connectivity | 2.06 x 0.83 in

Meet the AEM Afro Sensor Controller (X-Series Wideband UEGO Gauge with Obie Connectivity), a compact instrument designed to help you monitor and interpret your engine's air-fuel balance with clarity and speed. Its small footprint is built for installation in tight spaces, while the core technology delivers insightful data you can act on during tuning or daily driving.

Precision at a glance

In independent testing, X-Series wideband controllers demonstrated rapid response times compared to a field of 17 competitors. The Afro model leverages X-Digital wideband technology (patent 9,575,030) for consistent, high-resolution AFR readings as you tune or monitor live data.

Smart integration that fits modern vehicles

With built-in OBD-II output and CAN-based compatibility for 2008 and newer vehicles, installation becomes easier and data becomes more interoperable with your dash, ECU, or tuning software. This makes it suitable for street-driven builds and track-ready setups alike.

What’s included and practical setup

The package ships with a Bosch 4.9LSU wideband UEGO sensor, a reliable sensing element that delivers stable feedback even under dynamic conditions. A factory-calibrated resistor reduces setup time, and the system supports free-air calibration if you want to recalibrate as the sensor ages.

• Fastest response among tested wideband controllers in independent comparisons
• X-Digital technology delivers precise AFR data
• OBD-II and CAN compatibility for modern vehicles
• Bosch 4.9LSU wideband sensor included for reliable measurement
• Calibrated resistor minimizes initial setup; optional free-air calibration later

Real-world use cases

Whether you’re dialing in a performance tune, monitoring air-fuel balance during spirited driving, or verifying sensor health during maintenance, the Afro Sensor Controller provides a clear, actionable data stream. The compact form factor makes it adaptable to under-dash installs, with the option to upgrade or recalibrate as your vehicle and goals evolve.

• Racing and performance tuning workflows benefit from fast AFR feedback
• Daily-driver reliability is supported by stable sensor data
• DIY enthusiasts can install and calibrate with minimal downtime

Note: While the Afro Controller can help you observe AFR trends, outcomes depend on your vehicle setup, fueling strategy, and tuning decisions. Use the data as guidance for informed adjustments rather than guarantees.