Description A genuine Bosch replacement wideband sensor for the older AEM wideband kits including the 30-4100 and 30-2310 kits that we sell/sold. Please note: This sensor is not the same as the more common 7057 style sensor. If you require a sensor for your Zeitronix, Innovate, Tech Edge kit then please look at our “7057” wideband sensor in the sensors category.