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The Grams Performance 52mm wideband air/fuel ratio gauge uses a Bosch 4.9 LSU sensor and a three-color LED sweep for fast, precise AFR monitoring. Designed for gasoline, diesel and E85 use, the gauge displays a four-digit readout with accuracy down to 0.001 and reports AFR from roughly 10:1 to 20:1. Its 52mm housing and 0–5V analog output make it suitable for dash mounting and tuning applications.
Grams Performance Wideband Air/Fuel Ratio Gauge
