SINCOTECH 2" 7-Color 52mm Car Air Fuel Ratio Gauge Meter Lean-Optimal-Rich Range DO637 for 12V Car

Specification:
Model: 6378
Name: Air Fuel Ratio Gauge
Applicable car: 12V vehicles
Material: ABS shell, aluminum outer ring, acrylic panel
Backlight: colorful LED lights (white, red, green, blue, yellow, cyan, purple)
Button: backlight color switching (manual)
Pointer drive: high-speed step motor
Scale range: LEAN~OPTIMAL~RICH
Pointer: red
Panel: black and white
Scale: white
Shell: black
Outer ring: black
Installation hole size: diameter 52mm

Package List:
-1 x Air Fuel Ratio Gauge
-1 x Cable