2'' 52mm Air Fuel Ratio Gauge AFR Gauge W/ Narrowband Oxygen Sensor For Car Boat
52mm Air Fuel Ratio Gauge LED Digital Display With Narrowband O2 Oxygen Sensor Car Gauge for 12V Car 0258006028 Racing Gauge. 1 Narrowband Oxygen Sensor. 1 Air Fuel AFR Gauge. Oxygen Sensor Specification.