AEM
AEM X-Series Wideband UEGO AFR Sensor Controller Gauge
SKU: A005 30-0300
Description
Part #: 30-0300
AEM's X-Series Wideband UEGO Air/Fuel Ratio Sensor Controller Gauges are built upon unique, patented 100% Digital technology (Patent 9,575,030) that makes them the fastest responding wideband air/fuel ratio controllers in independent testing*.
Features:
- X-Series Wideband UEGO AFR Controller Gauge were fastest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitors wideband AFR controllers
- Patented X-Digital wideband technology (Patent 9,575,030)
- AEM co-developed the new sensor with global automotive supplier FAE, culminating in a new sensor design that has a faster response time than the Bosch 4.9 LSU and is less prone to failure in high performance vehicles
- 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 16V
- 0-5V & 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 %
- 52mm gauge diameter and slim 0.825" gauge depth
- Gauge cup depth only .200" deep!
- Auto dimming feature
- User configurable display via buttons on the gauge face for changing AFR values, Lambda and O2%, and 3- or 4-digit display
- Black bezel and black dual faced faceplate included (gauge only, silver bezel/white gauge option sold separately, PN 30-0300-ACC)
- Locking connectors
X-Series Wideband UEGO AFR Sensor Controller Gauge with patented X-Digital Technology, Includes X-Series Wideband Controller Gauge, Bosch LSU 4.9 Sensor, Wiring Harnesses, Black Bezel, Reversible Black AFR-Lambda Faceplate, O2 Sensor Bung
Fitment
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Available on iOS & Android
Specifications
| Brand | AEM |
| Part Number | A005 30-0300 |
Videos
How To Install An AEM X-Series Air/Fuel Sensor Gauge (WideBand UEGO Gauge)
AEM X-Series Wideband UEGO AFR Gauge & AEM-FAE Sensor: Faster Response, Indestructible Performance
How to Install An Air Fuel Gauge | AEM Wideband
AEM WIDEBAND INSTALL AND SETUP HONDATA!
X-Series Wideband Gauge Set-Up and DYNO RUN
AEM X-Series Wideband Installation | 2Broke2Boosted Ep. 4
2005 GMC Sierra AEM Wideband Install
NAMI GETS AEM WIDEBAND INSTALL + POV PULLS (RSX)
AEM X Series Wideband Install | Analog wiring for SCT x4 | Livelink Gen II | 2007 GT500 | 30-0300
Wideband Gauge Comparison: AEM X-Series vs. Ballenger AFR500 CAN vs. AFR500 | HP Tuners
Become a Carburetor Tuning Expert - Tune by AFR Gauge (CHEAP Wideband Install w/ Part Links)
WIDEBAND AFR Gauge INSTALL || HOW TO || Hemi AFR GAUGE Wire Up Install/Location with Headers + RUNS
How to install a WIDEBAND gauge and sensor - AEM X-series AFR
AEM X-Series OBDII Wideband Gauge Tested with HPTuners on a Chevy Camaro!
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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