Description:

Adjustable Design ----- 7 color air fuel ratio meter, with color change button, you can change the color freely. You can choose according to your own preferences, makes it easy to drive at night.. Clear Display ----- Red pointer well contrasts with the black dial, plus the clear numbers, you can easily and clearly get results.Adopts stepping motor for high sensitivity, and the result is precise and reliable.. Wiring Method ----- Connect the black wire to the negative pole of the power supply and keep it connected.Connect the red wire to the positive pole of the power supply and keep it connected.. Visible at Night ----- Support digital display mode, LED light on the dial allows easy reading in the darkness.. Wide Application ----- This air fuel ratio gauge is universal for all 12V cars, easy operation and installation with English manual..