Feature:1. 2" (52mm) Black Face Gauge with a Magnified Tinted Lens.2. Reads from 0 to 8,000 RPM.3. Installs to any 1-10 Cylinder Gas Powered Engine.4. 7 Color LED Through Dial Lighting with Color Recall Ability.5. Stepper Motor Technology.6. Dimmer Wire Allows the Gauge to Dim 30%.7. Suitable for 12V vehicles.8. LED super bright display.9. Racing look enhance the characteristic to your car.10. The button on the lens can switch the color of light you want.Specification:Model Number: 864191Material: MetalHousing color: WhiteFace Color: BlackVoltage: 12VSize: 57mm*54mmRed: 12v Ignition switchGreen: Tacho signalYellow: 12V dash lighting / 12V Ignition switchBlack: Vehicle groundFitment: Universal Car 2"/52mm diameter Tachometer GaugePackage Included:1 X Tachometer Gauge