AEM 30-4110NS Wideband UEGO Controller Gauge Lets Users Source Their Own 4.9LSU Wideband Sensor


AEM 30-4110NS Wideband UEGO Controller Gauge
Lets Users Source Their Own 4.9LSU Wideband Sensor

February 9th, 2016, Hawthorne, CA - AEM has released the 30-4110NS Wideband UEGO air/fuel ratio Controller Gauge, which is sold without a wideband sensor. This allows users to source a Bosch 4.9LSU sensor separately to potentially save money. The 30-4110NS gauge has a street price of $129.95.


AEM tested many sensors with the 30-4110NS, including popular inexpensive knockoff sensors, and determined that only the following sensors will deliver reliable performance:

Part Number
Bosch LSU 4.9(950mm)
Bosch LSU 4.9(950mm)
Bosch LSU 4.9(950mm)
Bosch LSU 4.9(325mm)

Using the above sensors ensures that the factory sensor calibration is accurate and that the controller performs optimally. The use of any non-approved sensor may affect the controller's operation, and will void the warranty of the 30-4110NS.

The new 30-4110NS Wideband UEGO Controller Gauge has the same display range and includes the same calibrated scale on its 0-5v output (10-20 AFR), for data logging or closed-loop feedback control when used with a standalone ECU. A serial output (RS232) is also included for outputting AFR values for data logging and feedback control.

  • Center LED Readout Displays Gasoline Values from 10 to 18 :1 AFR
  • Outer LED Ring Displays Gasoline values from 11 to 16.75 :1 AFR
  • 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
  • 0-5V Output Lambda values from .68 to 1.36
  • Center LED Readout Displays Lambda values from .68 to 1.23
  • Outer LED Ring Displays Lambda values from .75 to 1.14

AEM's digital gauge-type wideband controllers feature a LED display and sweeping LED "needle" that changes colors as AFR changes from rich to lean, a 52mm (2-1/16") gauge housing that fits in most gauge pods, and they can be remotely mounted virtually anywhere. AEM's legendary Wideband UEGO ('you-way-go') Air/Fuel Ratio Controller Gauges unite accuracy, speed and control with an easy to read, digital interface. AEM created the first wideband controller and gauge combination in 2004.

30-4110NS Wideband UEGO Controller Gauge Features:

  • Controller gauge and hardware sold without wideband sensor
  • Weld-in bung included
  • No free air sensor calibration required with approved sensors
  • 52mm (2-1/16") gauge housing
  • 0-5v analog output (10-20 AFR range only)
  • RS232 Serial output
  • Interchangeable black/white faceplates and black/silver bezels included


Advanced Engine Management's performance electronics are Engineered to Outperform. The company designs, manufactures and assembles engine management systems, wideband air/fuel systems, data loggers, water/methanol injection systems, performance gauges, boost controllers, ignition components, fuel delivery components and adjustable cam gears at its corporate headquarters in Hawthorne, CA.