AEM Electronics wideband air/fuel UEGO gauge kits unite unsurpassed accuracy, speed and control with an easy to read, digital interface. AEM wideband UEGO's also offer a 0-5V analog output for use with data loggers and virtually any engine management system, such as the AEM EMS or FIC. The kits feature a Bosch sensor with an accuracy of .1 AFR, making it among the fastest and most accurate widebands available. AEM Electronics digital wideband air/fuel UEGO kits' bright LED display shows A/F ratio in .1 increments, and the sweeping LED "needle" lines the edge and changes color as air/fuel ratio changes from rich to lean. The digital UEGO's come with both silver and black bezels and white and black faceplates that are easily interchangeable.