Features: 1.With a diameter of 52mm/2in, it is widely used and suitable for all 12V cars. 2.It can monitor the car's compression and boost levels, ranging from 0?30in.Hg / 0?30PSI , which can prevent turbine overshoots from causing other potential engine problems. 3.The pointer indicator has a luminous red pointer and a blue LED display for clearer viewing. 4.Provide 7 kinds of pure color settings, you can choose according to your own preferences, makes it easy to drive at night. 5.Simple installation, with boost sensor, 1.94-foot power harness and installation instructions, all of which make the installation process quick and easy. Specification: Item Type: Turbo Boost Gauge_x000D_ Material: Plastic_x000D_ Fitment: Universal for all 12V Cars._x000D_ _x000D_ Boost Levels: 0-30 IN.HG, 0-30PSI_x000D_ Diameter: Approx. 2in/52mm_x000D_ Current: IGN MAXIMUM 0.3A ILM 0.3A_x000D_ Power: DC(10-15V) 12V Professional_x000D_ _x000D_ _x000D_ Wiring: _x000D_ Red-positive_x000D_ Black-negative_x000D_ Green-connect boost sensor