.›Universal Air Fuel Ratio Gauge Blue LED Indicator Meter 52mm Dia Auto Instrume
52mm/(2 1/16in). 4pcs red+4pcs yellow+2pcs green indicator, can clearly shows whether the air‑fuel ratio is normal. Item Type: Air Fuel Ratio Gauge. 1 x Air Fuel Ratio Gauge. LED: Total 10Pcs, Red x 4Pcs, Yellow x 4Pcs, Green x 2Pcs.