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AEM Wideband UEGO Gauge - Digital Air/Fuel - 30-4110

$285.83 $179.95 (You save $105.88)
5 Star Rating

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An AEM Wideband UEGO Gauge is a wideband sensor controller that monitors air to fuel ratios (AFR) as you tune up your car. The goal of using the device is to prevent a lean fuel mixture that may damage the vehicle’s engine and prevent a rich fuel mixture that decreases performance.

To improve AFR accuracy and control, AEM combines its single-channel wideband UEGO controller and gauge display into a single unit that features a user-friendly interface.
The AEM Wideband UEGO Gauge is an AFR controller and a gauge comprised in one unit.

Benefits of the Gauge

Using accurate AFR data is essential for tuning up an engine for two reasons. When a vehicle runs too rich as a result of having low air to fuel ratios, it can result in a loss of driving power, and running too lean due to high air to fuel ratios can seriously damage the engine.

It’s essential to use the gauge during tune up, allowing you to monitor AFR and alter your tuning parameters in order to optimize them to deliver the highest levels of power and efficiency.

Free-Air Calibration

Some manufacturers of AFR measurement devices require O2 sensors in the equipment to have free-air calibration performed to calibrate the sensors. This isn’t necessary when you use the AEM Wideband UEGO Gauge, which contains Bosch 4.9 LSU sensors. Individually laboratory-calibrated, this sensor from Bosch requires no free-air calibration.

Tune With Confidence

If you’re tuning up a vehicle to redefine its performance, the last thing you want is to find that the tune up job doesn’t deliver the performance you desire. Using an AEM Wideband UEGO gauge is one way to keep this from happening. If you need a highly efficient monitor of AFR, contact us today, and we’ll help you select the right one for your unique tuning needs.


Showing reviews 1-10 of 11 | Next

  1. Great Value

    Posted by Josh Thiessen on

    Installation was a breeze other than welding in the bung due to my lack of experience. Put this in my 91 Miata because I have plans to turbo it. Wiring into ecu was very straightforward and simple. Fantastic display on gauge and the auto dim feature is great for night driving. Would highly recommend this product.

  2. easy install

    Posted by jacob ramsey on

    easy to fallow directions. looks good and is easy to read. great price point

  3. Best wideband for the money. Super easy install

    Posted by Robert on

    I got this after having issues with a used innovate lc1. I ended up coming here and buying the aem uego for 149.99 and its awesome. Extremely easy install and no calibration. plug and play. I am really happy with my purchase!
    Now i can watch my afrs on my ka turbo setup properly!

  4. Nice looking and easy to install

    Posted by Scott pingel on

    Received it and put the wire face plate on, instructions were straight forward, installed in 30 minutes, fired her up and pleased with information it provides to tune my carburetor.

  5. For the money very tough to beat

    Posted by Unknown on

    This wideband easily integrated with my ems and performs well. For the money its tough to beat.

  6. Great Product

    Posted by Butch on

    Is exactly what i needed made it possible to tune right plus the gauge is busy all the time Kinda kool

  7. Great Gauge, comes with everything

    Posted by Mario on

    Awesome gauge, very inexpensive for the quality even though its a brand name. Came with all the necessary hardware, plus its was super easy to install.

  8. Works awesome! Easy install!

    Posted by Austin Joritz on

    Took about a half hour to install and it's simple plug and play.


    Posted by Ivan Nelson on

    If you need a wideband you can't go wrong with AEM. Just get this and you wont regret it.

  10. Definately worth buying

    Posted by Unknown on

    Installed mine before i got dyno-tuned and my tuner thanked me because it provided a more accurate AFR reading than at the tailpipe. Love that it's LED!

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Showing reviews 1-10 of 11 | Next