AEM's world-famous Wideband O2 air/fuel ratio UEGO gauge features a digital LED display and a sweeping LED needle that changes color as AFR shifts from rich to lean, housed in a 52mm gauge body that fits most gauge pods. The 4.9 LSU sensor has a faster light-off time and lower current draw than the earlier 4.2 LSU sensor and never requires free-air calibration when used with this gauge, thanks to its factory-calibrated resistor.
Specifications:
- Sensor: Bosch 4.9 LSU
- Display Range (Gasoline): 10-18:1 AFR center readout, 10-20:1 via 0-5V output
- Housing: 2-1/16 in. (52mm)
- Output: 0-5V analog
- Calibration: laser-etched resistor, no free-air calibration required
- Warranty: 12 Months - Excluding Bosch O2 Sensor
- Part Number: 30-4110
This product carries a California Proposition 65 warning per the manufacturer's data.
FAQ
What sensor does the AEM 30-4110 gauge use?
A Bosch 4.9 LSU wideband sensor with a faster light-off time and lower current draw than the earlier 4.2 LSU sensor.
Does this gauge require free-air calibration?
No, the 4.9 LSU sensor uses a factory-calibrated resistor and never needs free-air calibration when used with this gauge.
Is the 30-4110 sensor interchangeable with the older 30-4100 gauge?
No, the 30-4110 uses a different sensor connector than the 30-4100 and the two are not cross-compatible.

