AEM Electronics

AEM Wideband UEGO Air Fuel Ratio Gauge (30-4110)

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AEM Wideband Air Fuel Ratio UEGO Gauge 30-4110

When asked about checking their air, most drivers look at their tires.

Not you.

You’ve spent countless hours in the garage, working on souping up your engine to operate at higher, more powerful levels. You've been doing this for a while, so you know that air is an essential part of what’s happening in your engine.

Introducing AEM's Wideband UEGO.

The AEM wideband sensor is more precise and detailed than other fuel ratio gauge kits on the market. This three-digit digital readout can be seen in its center, with a digital LED display “needle” that changes color as ratios change from rich to lean.

Trust AEM's reputation and world-famous wideband for accurate monitoring. AEM's legendary Digital Wideband is unparalleled in the market. The UEGO Air-Fuel Ratio Controller/Gauge has one of the best tools you can use to get your engine running as efficiently and safely as possible while preventing serious damage, all with just a glance!

AEM 30-4110 Wideband Features

  • The gauge controls its data by a digital LED display and LED needle that will change colors as the ratios change from rich to lean.
  • Interchangeable black and silver bezels / black and white face plates included
  • Provides high accuracy data that is essential when tuning your engine.

AEM Wideband Benefits

  • This gauge is easier to read and more accurate than most fuel sensor controller gauges.
  • No free air sensor calibration required - ever
  • Allows you to accurately monitor your Air/Fuel Ratio with simplistic yet durable wideband gauge designs.


  • Universal range of compatible cars

What's in the box?

  • AEM UEGO Wideband Gauge
  • Bosch 4.9 LSU oxygen sensor
  • Interchangeable black and silver bezels
  • Interchangeable black and white faceplates
  • All necessary wiring for install


  • 12 Month Limited Manufacturers Warranty

Customer Reviews

Based on 163 reviews
Jose Ramirez
Way to go!

Best wideband gauge out there, AEM is the way.

Awesome product

I bought the gauge as I was told it was a great product. The shipping was fast, and the Guage worked flawlessly. I highly recommend it to anyone that is trying to see how their vehicle is running!

Great guage

Takes the guesswork out of your tune at a very reasonable price. Should have had one a long time ago

Anthony S.
Works Great And Easy Install

When I 1st purchased it my sensor was not reading. I contacted MAPerformance and they helped me get a replacement sensor from AEM which took less then a week to arrive and after my sensor came everything worked like it was supposed to. This is going to make tuning my OXT so much easier. MAPerformance has the best customer service 🤙

Hector Pazmino
Great product