Wideband UEGO Air/Fuel Ratio Gauge 52mm (2-1/16”) with 4.9 LSU Sensor, Digital AFR Controller Gauge, Wideband O2 Control Sensor kit | 0-5V Analog Output (10-20 AFR Range)

⚙️ Tune Smarter, Drive Faster — Precision Air/Fuel Monitoring for Maximum Power

When every fraction of a second matters, your tune has to be perfect. The Wideband UEGO Air/Fuel Ratio Gauge Kit gives you the precision and reliability you need to dial in your setup with confidence. Featuring a Bosch 4.9 LSU wideband O2 sensor, this 52mm (2-1/16”) digital AFR gauge delivers real-time air/fuel readings from 10.0 to 20.0 AFR, helping you achieve optimal combustion and power output.

Whether you’re fine-tuning your turbo, supercharged, or naturally aspirated build, this digital AFR controller gauge ensures your engine runs efficiently, safely, and with maximum performance.

\WIDEBAND UEGO O2 AIR/FUEL RATIO GAUGE KIT

Product Features

– A custom look

• Interchangeable black and silver bezels

• Interchangeable black and white faceplates

– 4.9 LSU wideband sensor and weld-in bung included

– No free air sensor calibration required – ever

– 52mm (2-1/16 inch) gauge housing

– Analog output: 0-5V

– AFR range: 10-20 AFR

💡 Engineered for Accuracy and Versatility

The Wideband UEGO Air/Fuel Ratio Gauge is built around advanced UEGO sensing technology for unparalleled response time and stability. With a clean digital display, durable housing, and 0–5V analog output, it integrates seamlessly into your ECU, standalone system, or data logger for real-time feedback.

Key Specifications:

• Measurement Range: 10.0 – 20.0 AFR

• Sensor Type: Bosch LSU 4.9 wideband oxygen sensor

• Gauge Size: 52mm (2-1/16”) universal fit

• Display Type: Digital LED readout for fast, clear AFR data

• Analog Output: 0–5V signal compatible with ECUs and tuning systems

• Controller Type: Integrated digital wideband controller

• Power Supply: 12V DC system

• Applications: Turbocharged, supercharged, and high-performance vehicles

With its quick response rate and consistent accuracy, this is the gauge trusted by tuners, racers, and performance builders worldwide.

How to determine compatibility?

There is a sticker or nameplate on the frame of each device with model and serial number information. The adaptability of most parts is model-based, which means that these parts are only suitable for specific series of manufacturing equipment. Please carefully verify the compatibility of this kit with your model before purchasing.

• Confirm compatibility by model number (each device has a specific set of parts for that model).

• Do not match by brand or image (parts compatible with your brand may not be compatible with your model).

AFR Value Range By Fuel Types

• Gauge Display/0-5V Output Gasoline values from 10 to 20:1 AFR

• 0-5V Output E85 values from 6.6 to 13.2:1 AFR

• 0-5V Output Ethanol values from 6.14 to 12.3:1 AFR

• 0-5V Output Methanol values from 4.4 to 8.8:1 AFR

• Gauge Display/0-5V Output Lambda values from 0.68 to 1.36

📦 Complete Plug-and-Play Kit

Everything needed for installation and calibration is included in the box.

Included Components:

• 52mm Digital Wideband AFR Gauge

• Bosch 4.9 LSU Sensor

• 0–5V analog output harness

• Wiring and power harness

• Mounting hardware and installation manual

No hidden parts, no extras needed — just plug it in, calibrate, and go.

Package

1* UEGO Gauge Assembly

1 * UEGO Sensor

1 * O2 Sensor Bung

4 * Butt Connectors

1 * Installation Instruction

1 * 4 Lead Harness

1 * UEGO Sensor Harness

1 * Silver Bezel

1 * Black Lambda Faceplate

1 * White AFR Faceplate

【AIR/FUEL RATIO UEGO GAUGE】Our wideband O2 AFR gauge has a digital LED display and LED “needle” that changes color as the AFR changes from rich to thin; Each gauge is equipped with black and silver bezels and black and white faceplates for multiple color combinations and customized appearance.
【WIDELY COMPATIBILITY】The 52 mm (2-1/16 inch) gauge housing ensures that it fits most instrument pods and can be installed remotely almost anywhere. Our digital wideband gauge have 0-5V analog output, which can be used with data loggers and almost all engine management systems. Confirm compatibility by model number rather than brand or image.
【PREMIUM QUALITY】Accurate A/F ratio data is crucial when adjusting the engine. The 4.9 LSU sensor provides speed and accuracy for the controller, it can react quickly even for every 0.1 air-fuel ratio change, allowing you more time to respond and protect your engine safety. At the same time, it never requires free-air calibration when used with our wideband O2 UEGO AFR gauge.
【INSTALLATION】Thanks to the 52mm housing of the wideband gauge, you can install it almost wherever feasible. Plug and play, very convenient. In order to help you understand the accessories and installation details, we have provided an installation instruction in the package.
【100% SATISFACTION SERVICE】If you have any questions or dissatisfaction, please email us and we will help you solve it perfectly – 24 Months Warranty & 24 Hours Service.

🏁 Perfect for Tuners, Racers, and Daily Drivers

Whether you’re street tuning or setting records on the dyno, the Wideband UEGO Air/Fuel Ratio Gauge Kit delivers the accuracy, response, and data you need. With its integrated controller, Bosch 4.9 LSU sensor, and real-time digital display, it’s the ultimate tool for anyone serious about performance.

Tune smarter. Boost safer. Drive faster — with Wideband UEGO precision.