A wideband UEGO sensor controller accurately monitors Air/Fuel ratios (AFR) during the tuning process to prevent a lean fuel mixture, which could lead to engine damage. AEM's Wideband UEGO Controller is available in single- and dual-channel models for everything from four-cylinders to V10s, and is the most affordable UEGO sensor controller available. This unit has a very low current draw, and features both 0-5v calibrated output and 0-1v calibrated output. This unit works with virtually any stand-alone engine management system.