AFR (Carburation) control gauge from the renowned AEM company. Wideband probe for the most accurate reading possible.
 Wideband AEM 30-0300 X-Series
 Diameter 52 mm
 Thickness 20 mm
 Digital display with backlight
 0-5V & RS232 CANbus output to communicate with other instruments or control units
 Compatible with petrol, ethanol, e85 and methanol.