SKU: 42968470521

AEM X-SERIES WIDEBAND GAUGE

Sale price$98.07 Regular price$108.97
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

AEM X-SERIES WIDEBAND GAUGESKU AEM30 0300 AEM X Series Wideband UEGO Air Fuel Ratio Sensor Controller Gauges are built upon unique, patented 100% Digital technology (Patent 9,575,030) that makes them the fastest responding wideband air fuel ratio controllers in independent testing*. The X Series Wideband UEGO AFR Sensor Controller Gauge (PN 30 0300) measures 2 1 16th inch (52mm) in diameter and features a modern, visually striking faceplate and new seven segment center display

SKU AEM30-0300

AEM X-Series Wideband UEGO Air/Fuel Ratio Sensor Controller Gauges are built upon unique, patented 100% Digital technology (Patent 9,575,030) that makes them the fastest responding wideband air/fuel ratio controllers in independent testing*.

The X-Series Wideband UEGO AFR Sensor Controller Gauge (PN 30-0300) measures 2 1/16th-inch (52mm) in diameter and features a modern, visually striking faceplate and new seven-segment center display that is 87% larger than the 30-4110 AEM Wideband Gauge center display. This creates the perception of a larger overall gauge, but in a common 52mm size for easy mounting. Its slim depth (less than one inch overall) and ultra-slim cup depth of .200-inches dramatically increases its application base and potential mounting locations.

The X-Series Wideband UEGO AFR Gauge has a user configurable display via buttons on the gauge face that allows you to change AFR values for different fuels, Lambda or O2%, change the center display to three or four digits, perform a free-air calibration if desired as the sensor ages, and change the CAN message ID when linking multiple X-Series Inline Controllers or X-Series Controller Gauges. A black bezel and black dual-faced faceplate for air/fuel and Lambda are included, and an optional silver bezel with white dual-faced air/fuel and Lambda faceplate is available (PN 30-0300-ACC, sold separately). An Auto Dimming feature is included. Locking connectors ensure a positive connection between the harnesses and gauge and a new single board design adds to the new gauge durability.

X-DIGITAL TECHNOLOGY

  • X-Digital wideband technology gives these controllers the ability to read and report values that other controllers do not, which can deliver more optimized engine tuning and a safer overall operating condition. The controller with high-speed digital implementation ensures no loss of signal fidelity and full transient response, making it able to identify the slightest fluctuations in AFR and output them in full value.

WHY RESPONSE TIME MATTERS

  • Faster response time improves wideband feedback control, and can provide a safer, more powerful and accurate tune. AEM Wideband Controllers with X-Digital technology can reduce deadtime and improve the performance of your vehicle through more accurate AFR tuning. Deadtime is the delay between when exhaust gas composition changes and when that change is reported by the O2 sensor. While flow of exhaust gases (transport delay) can affect deadtime, it is not the only source. Often, the sensing elements response to the gas is the largest contributor to deadtime when an engine is in high RPM under load.

When tuning an engine using wideband AFR feedback control on an inertia dyno, deadtime affects the data you are looking at because it is reported in a different operating location than when it actually occurred. This means with long deadtimes, whatever changes you make to the base fueling will likely be in the wrong location. This can be particularly dangerous to high compression and high-boost forced induction vehicles, and EFI systems that use feedback control to auto-tune.

Reducing deadtime improves wideband feedback control, and can provide a safer, more powerful and accurate tune. AEM Wideband Controllers with X-Series digital technology can reduce deadtime and improve the performance of your vehicle through more accurate AFR tuning.

FACTORY CALIBRATION RESISTOR OR FREE-AIR CAL, YOUR CHOICE!

  • The X-Series Wideband Gauge and X-Series Inline Controller support the popular Bosch 4.9LSU sensor and can utilize both the factory calibration resistor and free-air calibration methods**. This allows users to take advantage of the precise factory resistor calibration when a sensor is new but then allows for free-air calibrations if the user desires when the sensor ages. It is the perfect marriage of simplicity and accuracy!

WHAT IS A WIDEBAND UEGO AIR/FUEL CONTROLLER?

  • AEM's Wideband UEGO (Universal Exhaust Gas Oxygen, these Controllers are powerful, cost-effective tuning tools that allow users to accurately monitor the Air/Fuel Ratio (AFR) of their engine.

WHY USE A WIDEBAND AIR/FUEL CONTROLLER?

  • Accurate AFR data is critical when tuning an engine. Running rich (very low air/fuel ratio, excessive fuel) can cause a loss in power, while running too lean (very high air/fuel ratio, not enough fuel) may result in serious engine damage. Using a wideband air/fuel controller during the tuning process allows you to monitor AFR and adjust tuning parameters to optimize them for maximum power and efficiency. AEM has a comprehensive line of highly accurate, reliable wideband air/fuel controllers that can help ensure your vehicle is optimally tuned.

CAN I CHANGE THE AEM UEGO SENSOR CONNECTOR?

  • No. There is a laser-etched, calibrated resistor in the sensor's connector body. This resistor is specifically created for the exact sensor that it is attached to. Modifying this will invalidate the sensor output.

* Independently tested at 360° Product Testing (results reported on August 31st, 2015) against 17 competitors wideband UEGO Air/Fuel Controllers. AEM X-Series Inline with Bosch 4.9LSU wideband sensor and AEM X-Series Wideband UEGO AFR Gauge with Bosch 4.9LSU sensor recorded the fastest response times.
** Wideband UEGO sensors are wear items and their lifespan is determined by many factors including contamination from leaded fuels, automotive fluids, particulates, mechanical or thermal shock and from being unheated and exposed to the exhaust stream. Free-air calibration may correct drift as a sensor ages, but it is recommended that they are replaced as part of your vehicle maintenance program. When performing free-air calibration, please follow the procedure outlined in the instruction manual.

    Shared shipping only $24.99 in the lower 48 states.

    SS 9/8/22


    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 42968470521

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.8 ★★★★★
    Based on 1107 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    A
    Verified Purchase
    Alicia
    Battle Creek, US
    ★★★★★ 5
    Bulky
    I was a little disappointed in how bulky these were and seemed hard to get on. If you can get past this they do seem to work good. Hands do seem softer and a bit healthier.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 8, 2024
    D
    Verified Purchase
    Deb
    Los Angeles, US
    ★★★★★ 5
    Really moisturizes hands
    These gloves really work. My cuticles and hands alway seem dry. I used these gloves the first night I received them and my hands were really smooth afterward. When I get in bed at night, I play on my computer and iPad, and these gloves are perfect. The end of the index finger is designed to be used with a phone, computer, and iPad. Make sure you push the end of the fingers on the gloves all the way down to the end of your fingertips; otherwise you will not be able to use them with a device. I find they work better with my iPad than my computer. I have not tried to use with my phone. The gloves are not uncomfortable, but I found they are not comfortable to wear all night, so I just try to wear them about an hour every night. I wish I had these gloves about 20 years ago and my hands would probably look like a 20 year old.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 25, 2024
    P
    Verified Purchase
    phoenix329
    Grantham, US
    ★★★★★ 1
    So much pain
    I had to remove these after less than 5 minutes as they caused such intense pain. The gel clings to your skin even with the lotion and tightens around your hands cutting off circulation. They have been off for about half an hour and my hands still hurt. I was so excited as I really like this brand in general. Very disappointed. Be very aware when buying.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 12, 2023
    A
    Verified Purchase
    Amazon Customer
    Omaha, US
    ★★★★★ 5
    Moisturizing Gloves That Actually Work
    Over the years, I have tried so many different types of gloves to alleviate my dry skin. Since it especially bad on my hands I have tried everything. Of all the gloves I have purchased, this pair is head and shoulders above all the others. The first night I used these I could not believe the difference! It was astonishing. My hands were soft and supple for the first time in my life, and they stayed that way for most of the day. The moisturizing aspects of leaving humectants on one's skin for prolonged periods is really a game changer. They fit perfectly and can be pulled on with ease. The crazy bonus is that I was still able to use my phone once I was wearing them. That has never been the case with any of the other gloves I've used. If you have dry skin on your hands, you must try these. One night of use and you will be sold!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 15, 2026
    A
    Verified Purchase
    Abbylynn
    San Leandro, US
    ★★★★★ 4
    A bit small for one size fits all
    Purchased these for my husband who has pretty severe dry skin in the winter. The gloves are great but they are a bit small. My husband doesn’t have very large hands (cadet size golfing gloves) & this hardly reaches his wrist so one size fits most is a bit of a stretch. However, these do the job & he likes them. We appreciate the packaging doubles as a reusable pouch.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 27, 2024

    recommand products