For fast response times, AEM X-Series wideband UEGO air/fuel sensor controller gauges are a great option! Built on the unique, patent-pending X-Digital technology, they report accurate information quickly— enabling you to tune your engine more efficiently. These gauges have modern, visually striking faceplates with 7-segment center displays that are 87 percent larger. They're ultra-slim and come with black bezels and black dual-faced faceplates for air/fuel and Lambda. The displays are user-configurable and feature auto-dimming.
Additional features
- Bosch 4.9LSU wideband UEGO sensor
- Factory-calibrated resistor does not require free-air calibration—but technology allows for free-air calibration as sensor ages, if user desires
- Compatible with vehicle/system voltages up to 16 V
- 0-5 V and RS232 output for data-logging and feedback control
- AEMnet (CANbus) for data-logging and daisy-chaining multiple controllers up to 16 cylinders
- Can display AFR values in hundredths of a percent
- 52mm gauge diameter and slim 0.825 in. gauge depth
- Gauge cup depth only .200 in. deep
- Locking connectors
Includes X-Series Wideband Controller Gauge, Bosch LSU 4.9 Sensor, Wiring Harnesses, Black Bezel, Reversible Black AFR-Lambda Faceplate, O2 Sensor Bung
AEM X-Series Wideband UEGO Air/Fuel Ratio Controller Gauge w/ Sensor
AEM X-Series Wideband UEGO Air/Fuel Ratio Controller Gauge w/ Sensor
SKU:AEM 30-0300
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Shipping & Returns
Shipping charges are non-refundable.
30-day return window from delivery. Items must be unused, uninstalled, and in original packaging with tags/seals intact. Installed, modified, or used parts (including wheels and tires) can't be returned. Open-box, clearance, and overstock items are final sale.
A restocking fee may apply.
Please contact us for return authorization before shipping anything back.





