AEM’s Wideband that combines a gauge, a single-channel analog output, and a Bosch O2 sensor in one unit. The new ones are out. These now ship with the newer, Bosch LSU 4.9 sensors instead of the older 4.2!

The Bosch 4.9 LSU sensor has a faster light off time and draws less current than the 4.2 LSU sensor used with AEM's 30-4100 Wideband UEGO Controller Gauge. The 4.9 LSU sensors feature the same fuel compatibility as the 4.2 LSU and NEVER require free-air calibration when used with AEM's 30-4110 Wideband UEGO AFR Gauge. The 30-4110's 4.9 LSU sensor uses a different connector than the connector used with the 4.2 LSU sensors included with the original 30-4100 gauge controller. The sensors are not interchangeable between the two gauge controllers in any way, including changing connectors on the gauges.



Now includes black and silver bezels and black and white faces! One part number, 6 color combinations!

This unit has both an LED readout and a sweeping LED series that changes colors as the air-to-fuel ratio progresses from rich to lean. The 52mm (2-1/16”) sizing works with most gauge pods and makes for a simple, clean installation. Includes weld in bung as well!

No laptop or EMS required for monitoring.