Equus E8366 Gauge Air Fuel Ratio 2" Lean/Rich 180 Sweep Elec White 8000

Gauge, Air Fuel Ratio, 2" , Lean - Rich , 180 Degree Sweep, Elec, Wht, Slvr 8000 Connect to oxygen sensor and determine whether the engine is running rich or lean for maximum performance efficiency Dual display offers independent or dual left/right bank vs. inline readings Color LEDs provide a quick visual display of air/fuel ratio Aluminum bezel is lightweight and optimizes appearance Useful for tuning carbureted and fuel injected engines