The system features a bosch sensor with an accuracy of .1 afr, making it among the fastest and most accurate widebands available. quick and easy installation and use for applications that do not require a display gauge. the inline wideband uego gives all the benefits of the aem wideband air/fuel gauges to those who do not require or want an additional gauge in the car. perfect for datalogging, engine management systems or racing applications where a gauge is not desired. simple wiring and installation, the controller is weather proof and can be mounted anywhere in or outside the vehicle.