The AEM 30-4110 Digital Wideband UEGO Gauge provides real-time, precise air/fuel ratio (AFR) data essential for tuning and monitoring engine performance. Using the advanced Bosch LSU 4.9 sensor, it delivers faster response times, reduced current draw, and greater accuracy—no free-air calibration required.
This compact 52 mm digital gauge features an easy-to-read LED display with a color-changing sweep indicator that transitions from rich to lean for at-a-glance data. Designed for use with gasoline, E85, or methanol, it’s perfect for performance tuning, racing, and engine diagnostics. Integrated controller circuitry simplifies installation while ensuring reliable readings.
Features:
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Bosch LSU 4.9 sensor for ±0.1 AFR accuracy and fast response
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No free-air calibration required—factory-calibrated for reliability
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Digital LED display with color-sweep indicator
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Integrated controller and gauge in one compact unit
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Supports multiple fuel types (gasoline, ethanol, methanol)
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52 mm diameter fits standard gauge pods