AEM’s wideband air/fuel gauge unites unsurpassed accuracy, speed and control with an easy to read, analog interface. The AEM wideband also offers a 0-5v analog output for use with data loggers and virtually any engine management system, such as the AEM EMS or FIC. AEM has combined its single-channel wideband UEGO controller and gauge display into one unit, uniting unsurpassed AFR accuracy and control with an easy-to-read interface. 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.