SKU: 66008114335

AEM Electronics X-Series Inline Wideband UEGO AFR Sensor Controller with X-Digital Technology (30-0310)

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Description

AEM Electronics X-Series Inline Wideband UEGO AFR Sensor Controller with X-Digital Technology (30-0310)AEMs X Series Inline Wideband UEGO Air Fuel Ratio Controllers are built upon unique, patented, 100% digital technology that makes them the fastest responding wideband air fuel ratio controllers in independent testing*. The X Series Wideband UEGO Air Fuel Ratio Controller replaces the popular 30 2310 Inline Controller. X Series Inline Wideband UEGO Controller features a weather resistant, low profile enclosure with status LEDs. It is ideal for users

AEM’s X-Series Inline Wideband UEGO Air/Fuel Ratio Controllers are built upon unique, patented, 100% digital technology that makes them the fastest responding wideband air/fuel ratio controllers in independent testing*. The X-Series Wideband UEGO Air/Fuel Ratio Controller replaces the popular 30-2310 Inline Controller.

X-Series Inline Wideband UEGO Controller features a weather-resistant, low-profile enclosure with status LEDs. It is ideal for users who do not need a gauge display and want the fastest response time when data logging or for feedback control when tuning with an engine management system.

The X-Series Inline Controller includes a 0-5v and RS232 Serial Port output for feedback control and data logging, and an AEMnet (CANbus) output for data logging and daisy chaining multiple X-Series Controllers together (up to 16 cylinders) for recording AFR in multiple cylinders. It supports vehicle/system voltages up to 16V, and can be used on EFI or carbureted applications, and dynamometers in applications using gasoline, methanol, ethanol, Diesel, propane and CNG.

PATENTED X-DIGITAL TECHNOLOGY – It’s The Fastest
X-Series Widebands are the fastest responding wideband air/fuel ratio controllers in independent testing against 17 other wideband UEGO air/fuel controllers.* The controller’s high speed, patented, X-Digital technology (Patent 9,575,030) 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’s Wideband Controllers with X-Digital technology reduce deadtime and can improve the performance of your vehicle through more accurate AFR tuning.

FACTORY CALIBRATION RESISTOR OR FREE-AIR CAL, IT’S YOUR CHOICE!
X-Series Wideband Gauges and the 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’s the perfect marriage of simplicity and accuracy!

WHAT IS A WIDEBAND UEGO AIR/FUEL CONTROLLER?
AEM's Wideband UEGO (Universal Exhaust Gas Oxygen, pronounced “You-Way-Go”) 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’S 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’s output.

* Independently tested at 360° Product Testing (results reported on August 31st, 2015) against 17 competitor 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’s maintenance program. When performing free-air calibration, please follow the procedure outlined in the instruction manual.

X-SERIES WIDEBAND UEGO CONTROLLER FEATURES:

  • X-Series Inline Wideband UEGO AFR Controller were fastest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitors wideband AFR controllers
  • Patented X-Digital technology (Patent 9,575,030)
  • Includes Bosch 4.9LSU wideband UEGO sensor
  • Factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires
  • Compatible with vehicle/system voltages up to 16V
  • 0-5V & RS232 output for data logging and feedback control, AEMnet (CANbus) for data logging and daisy-chaining multiple controllers up to 16 cylinders
  • Weather-resistant, low profile design

AFR VALUE RANGE BY FUEL TYPES:

  • 0-5V Output Gasoline values from 8.5:1 to 18.0:1 AFR
  • CANbus Output Gasoline values from 8.0:1 to 20.0:1 AFR
  • CANbus Output Lambda values from .55 to 2.00
  • 0-5V Output Lambda values from .58 to 1.23
  • 0-5V Output E85 values from 5.7:1 to 12.0:1 AFR
  • 0-5V Output Ethanol values from 5.2:1 to 11.0:1 AFR
  • 0-5V Output Methanol values from 3.75:1 to 8.0:1 AFR
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: 66008114335

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SUSIEQ
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Very nice material
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Reviewed in the United States on January 27, 2026
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Reviewed in the United States on December 18, 2025
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Steve D.
Charlottesville, US
★★★★★ 5
Great Value and Good Quality RV Queen-sized Comforter Set
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We needed a smaller comforter for our RV bed to limit overhang and this one seemed like a good fit and we were right. The print is conservative and modern in appearance. The feel and thickness are perfect for our typical use in a warm weather state that we camp in year round. Last trip out it got pretty cold overnight and we let our dog sleep on our bed. When we returned home we washed it for the first time. I held my breath to see what condition it would be in afterwards and it came out in great condition. While we were using it, we noticed the weight, texture and comfort were all where we needed it to be and therefore we would recommend this if you needed an RV Queen sized comforter without breaking the bank.
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Lexie
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★★★★★ 5
Great comforter for the price
Color: Beige Striped, Size: California King
Nice comforter for the price. It looks great on the bed, feels soft, and keeps us warm without being heavy. If you’re looking for a weighted or very thick comforter, this isn’t it, but for a lightweight option it does the job well. We have a split California King Sleep Number (two Twin XL bases) and I ordered the California King size. It fits, but the side drop is pretty short. Next time I would go with an oversized King or oversized California King for better coverage. Bonus: no weird chemical smell when I opened the package, which is always a win.
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kristina
Charlottesville, US
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Takes a few rounds in the dryer but it’s a rly nice comforter
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