AEM X-Series Wideband UEGO AFR Gauge

AEM X-Series Wideband UEGO AFR Gauge

- 52mm (2-1/16") design, only 20mm depth for easy installation

- Includes FAE 30-2404 wideband O2 sensor and weld-in bung

- Digital LED display with sweeping color-changing LED needle (rich to lean)

- Interchangeable black & silver bezels and black & white faceplates included

- 0-5V analog & RS232 CANbus outputs for logging or ECU integration

- Compatible with Gasoline, E85, Ethanol, Methanol

- Displays AFR or Lambda values (0.68 – 1.36)

- AEM part no. 30-0300

The AEM X-Series 30-0300 Wideband UEGO AFR Gauge is the benchmark for accurate and responsive air/fuel ratio monitoring. Trusted by tuners and enthusiasts worldwide, this compact 52mm digital gauge combines cutting-edge sensor technology with a sleek, customizable display.

AEM partnered with global automotive supplier FAE to develop the included FAE 30-2404 wideband O2 sensor, which delivers faster response times and greater durability compared to the traditional Bosch LSU 4.9 sensors—making it ideal for high-performance and motorsport applications.

Its ultra-slim housing allows for installation in tight spaces or gauge pods, while the multiple faceplate and bezel options let you tailor the look to your interior. With both analog 0-5V and RS232 CANbus outputs, the gauge integrates seamlessly with standalone engine management systems and dataloggers, ensuring precise tuning under any condition.

Kit Contents:

- AEM 52mm X-Series wideband gauge

- FAE 30-2404 wideband sensor with weld-in bung

- Wiring harness and cabling

- Black & silver bezels

- Black & white faceplates (Air/Fuel Ratio & Lambda options)

- Installation instructions

Fuel Compatibility:

- Gasoline

- E85

- Ethanol

- Methanol

AFR values are displayed in “gasoline mode” (Lambda 1 = 14.7), regardless of fuel type.

Important: As installation and usage conditions cannot be controlled by the manufacturer, the included sensor is not covered by warranty.

Note: This item is available on backorder only. Estimated arrival time is 1 week. Orders will be shipped as soon as stock is available.