Feature 1The boost/vacuum gauge is designed to monitor the boost pressure and vacuum compression level of your car's turbocharged or supercharged engine. 12 bar display range to ensure that the turbo will not over boost and avoid major damage to the engine. 2Luminous red pointer, a tinted magnified lens to ensure easy monitoring of all readings, and 10color through dial LED light system. Simply press the button on the front of the meter to easily select and change the color of the numbers and scale lines on the meter surface. 3With a builtin color memory function, so you don't have to worry about changing the color of the meter every time you start the vehicle. 4With a dimmer function, you can connect this meter to the headlight switch so that it can be dimmed by 30% when the headlights are turned on to get better visibility when driving at night. 5Includes a T-connector and 6ft black silicone vacuum hose, allowing easy tapping of any vacuum line connected to the intake manifold for easy installation.Item Type: Turbo Boost GaugeMaterial: ABSMounting Hole Diameter: Approx. 52mm/2inBackground Color: 10 colorsWorking Voltage: 12VFunction: Real-Time monitoring of the boost pressure of the car's turbocharged or supercharged engineApplication: 12V car universal .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Turbo Boost Gauge1 x Power Harness2 x Sensor Harness1 x Connecting Pipe1 x Tee Connector1 x Sensor1 x Iron Bracket2 x Screw2 x Nut6 x Cable Tie1 x Manual