With digital display, intuitive observation.Accurate and stable parameter display, low power consumption.Simple installation, stable performance, anti vibration, anti shock.Smoke lens during the day,clear and bright LED Display during the night.Add a racing look and feel to your ride,High quality and light weight.High accuracy and easy operation.Easy Installation, then you can use it conveniently.Only fit for 4 / 6/ 8 Cylinder Gasoline Car.:Item Type:Car Auto TachometerCondition : newProduct name :tachometer gaugeVoltage : 12VLength : 75mm/2.95inDiameter : 57mm/2.24inMeansure Range: 0~8000RPMFeature : LED super bright display.Comes with installtion manual .Fitment : Universal Car 2inch/52mm diameter Tachometer Gauge(The compatibility just for reference .Please make sure the item fit for your car before purchase.)Wire connection :Black : negativeRed : positiveGreen : signal lineColour: black + whiteMaterial: plastic + metalPackage Contents:1 * tachometer gauge1 * manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.