AEM Wideband UEGO Air/Fuel Ratio Gauge (AEM 30-4110)
Overview
Keep a close eye on your engine's air/fuel ratio with the AEM Wideband UEGO Air/Fuel Ratio Gauge. Part #30-4110 combines a wideband UEGO controller and digital gauge into one compact package, giving you real-time AFR information while tuning, troubleshooting, or monitoring a modified engine.
The 52mm gauge features a numerical digital display along with an LED "needle" that visually tracks changes in the air/fuel mixture. With the included Bosch LSU 4.9 wideband oxygen sensor and 0-5V analog output, the 30-4110 is a practical addition to performance builds where accurate AFR information matters.
Key Features
AEM Wideband UEGO technology
Part #30-4110
Integrated wideband controller and gauge
Bosch LSU 4.9 wideband oxygen sensor included
52mm / 2-1/16" gauge diameter
Digital AFR display
LED display needle for quick visual monitoring
0-5V analog output
No free-air calibration required
Interchangeable black and silver bezels
Interchangeable black and white faceplates
Universal fitment
Designed for performance and tuning applications
12-month manufacturer's warranty
Product Details
The AEM 30-4110 gives you a straightforward way to monitor air/fuel ratio without adding a separate wideband controller and gauge. The Bosch LSU 4.9 sensor measures the oxygen content in the exhaust and sends that information to the integrated controller, which displays the resulting AFR information on the gauge.
The center digital display provides a numerical AFR reading, while the surrounding LED display gives you a quick visual indication as the mixture moves from richer to leaner conditions.
The gauge also provides a 0-5V analog output for connecting the wideband signal to compatible tuning, data-logging, or engine-management equipment. AEM's Bosch LSU 4.9 sensor is factory calibrated, eliminating the need for routine free-air calibration.
Benefits
Monitor AFR in Real Time
See your engine's air/fuel ratio while tuning or making changes to your performance setup.
Quick Visual Feedback
The LED display provides an easy-to-read visual indication of mixture changes, while the center display provides the numerical AFR value.
Tuning-Friendly Output
The 0-5V analog output allows the wideband signal to be integrated with compatible tuning and data-logging equipment.
Compact 52mm Design
The standard 2-1/16" gauge size fits a wide range of gauge pods and custom mounting locations.
No Routine Free-Air Calibration
The included Bosch LSU 4.9 sensor is factory calibrated, so AEM does not require the typical free-air calibration procedure.
Flexible Appearance
Black and silver bezel options along with black and white faceplates let you match the gauge to your interior or gauge setup.
Specifications
Specification | Details |
Brand | AEM Electronics |
Product | Wideband UEGO Air/Fuel Ratio Gauge |
Part Number | 30-4110 |
Gauge Diameter | 52mm / 2-1/16" |
Sensor | Bosch LSU 4.9 UEGO |
Sensor Accuracy | ±0.7% |
Numerical AFR Range | 10.0:1 to 18.5:1 gasoline |
Sweeping LED Range | 0.751 to 1.143 Lambda |
Analog Output | 0-5V |
Sensor Warm-Up | Less than 20 seconds |
Sensor Exhaust Temperature Limit | 1030°C |
Sensor Thread | M18 x 1.5 |
Fitment | Universal |
Gauge Type | Digital Wideband AFR |
Warranty | 12-Month Limited Manufacturer Warranty |
Specifications are based on AEM's technical documentation for the 30-4110.
Vehicle Fitment
Universal Fit
The AEM 30-4110 is a universal wideband AFR gauge and can be installed in a wide variety of performance vehicles and engine applications.
Because installation requirements can vary by vehicle, confirm the available mounting location, electrical connections, and exhaust sensor placement before installation.
What's Included
AEM 30-4110 Wideband UEGO Gauge
Bosch LSU 4.9 wideband oxygen sensor
Wiring harness
Interchangeable black and silver bezels
Interchangeable black and white faceplates
Mounting hardware
AEM's listed package includes the gauge, Bosch LSU 4.9 sensor, interchangeable bezels and faceplates, and installation wiring.
Why Buy From FMS Auto Performance?
At FMS Auto Performance, we know a wideband gauge isn't just another pretty number on the dash. AFR information can be an important part of tuning, diagnosing, and monitoring a modified engine.
Whether you're building a street car, dialing in a performance setup, or adding instrumentation to an existing build, FMS Auto Performance can help you select the right equipment and provide installation support.
Built Not Bought. Let Faith Drive You Forward.
Shipping Information
Packaging may vary by manufacturer
Product availability may change without notice
Verify compatibility and installation requirements before ordering
Contact FMS Auto Performance if you need help selecting or installing a wideband system
Disclaimer
Professional installation is recommended.
Installation requires proper placement of the wideband oxygen sensor and electrical connections. The sensor should be installed according to AEM's instructions and kept within the manufacturer's operating temperature specifications.
The 0-5V output should only be connected to compatible equipment. Always verify wiring, calibration, and compatibility before installation.
AFR readings are intended for monitoring and tuning purposes. Proper engine calibration and safe operating conditions remain the responsibility of the vehicle owner, tuner, or installer.
Product specifications and included components may change according to the manufacturer's latest information.