Automotive gauge aimed at accurate, fast air-fuel ratio monitoring for race tuning. Confident tuning and clearer feedback during track sessions matter to professional teams and keen enthusiasts, so precise readouts are essential. Is the AEM X-Series Wideband UEGO AFR Gauge the right tool for race-day tuning and datalogging?
⚡ At a Glance
- • Measurement Range: Reads gasoline AFR from 8.0:1 to 20.0:1
- • Best for: Race teams and tuners who need fast AFR feedback
- • Not ideal for: Users requiring warranty-covered sensors for street use
Centre display and straightforward readout focus on quick interpretation of AFR data. Designed to support accurate tuning for gasoline engines across a wide AFR range.
Faster, clearer readouts – thanks to a larger seven-segment centre display
A seven-segment centre display is 87% larger than the earlier AEM 30-4110, making digits easier to read at a glance. The modern faceplate pairs with the larger display to improve visibility under track conditions.
Quickly spot AFR trends during runs without squinting or guesswork. Immediate visual clarity helps with fast adjustments between passes.
Reliable datalogging and control – with 0-5V, RS232 and AEMnet outputs
Includes 0-5V analogue output, RS232 serial port and AEMnet (CANbus) output to send AFR data to ECUs, data-logging devices and control systems. These interfaces support both real-time feedback control and detailed post-run analysis.
Connect straight to most tuners and dataloggers for integrated workflows. Logged AFR traces make tuning decisions and diagnostics much faster and more precise.
More accurate and responsive AFR readings – thanks to X-Digital wideband technology
X-Digital wideband technology enables the controller to read and report AFR values that some other controllers do not, while faster response times improve feedback control. The system is calibrated to cover gasoline AFR from 8.0:1 to 20.0:1.
Faster readings help achieve safer and more powerful tunes by letting fuel trims react promptly. Greater measurement fidelity reduces guesswork when pushing engine performance.
✨ The 4 Key Reasons for AEM X-Series Wideband UEGO AFR Gauge
- Included Lambda sensor – Ready for installation, reduces extra purchases and delays
- Authentic AEM packaging – Suggests genuine parts and brand credibility on delivery
- Modern faceplate design – Easier panel integration and clearer visibility under bright light
- Race designation & sensor policy – Built for track use, note no warranty for the Lambda sensor
📋 Technical Details at a Glance
- Display: Seven-segment centre display, 87% larger than AEM 30-4110
- Faceplate: Modern, visually striking faceplate
- Measurement Range: Gasoline AFR 8.0:1 to 20.0:1
- Technology: X-Digital wideband technology
- Sensor: Lambda sensor included in package
❓ Frequently Asked Questions
Q: Is the Lambda sensor covered by warranty?
A: No, the product description states there is no warranty for the Lambda sensor and return of the sensor is not accepted.
Q: Does the package include the gauge and sensor for installation?
A: Yes, user reviews indicate the package includes the gauge and the sensor for a complete installation.
Q: What outputs are available for datalogging and control?
A: Outputs include a 0-5V analogue output, an RS232 serial port and an AEMnet (CANbus) output for feedback control and data logging.
🏆 Our Verdict
Suitable for race teams and tuners who demand fast, accurate AFR data rather than a street-focused, warranty-backed solution. Large centre display, X-Digital wideband technology and multiple outputs make precise tuning and datalogging straightforward. Given the race-only designation and lack of warranty for the sensor, long-term value depends on track-focused use and the need for integrated datalogging.
