【Size & Compatibility】: The tachometer gauge has a diameter of 5 inches and is suitable for all cars with 4/6[Size & Compatibility]: The tachometer has a diameter of 5 inches and is suitable for all cars with 4/6/8 cylinder engines. Note: It is not suitable for diesel cars, only for 12V gasoline cars. Please check your car engine specifications before buying to see if it applies./8 cylinder engines. Note: Not for diesel cars, only for 12V gasoline cars. Please check the specification of your car engine to see if it is applicable before you buy 【Tachometer Accurate Measurement】: Can be used to measure automobile engine Revenue Per Mille, the measurement range is 0~ 11000RPM. High-precision measuring instrument, clear scale, accurate measurement, can easily understand and control automobile engine Revenue Per Mille, safer driving 【Tachometer Adjustable Light】: Seven-color LED lights bring you an extraordinary visual experience. The car tachometer has a built-in redshift light, which is clear at night. After power on, the product will check and adjust the pointer position by itself. It is a very cool engine tachometer and practical car accessories, making your journey more interesting 【Adjustable Color】 Choose the backlight color according to your personal preference. There are 7 colors to choose from. Specifications: Specifications Light Color: Light Color: Dark Blue/Yellow/Pink/Light Blue/Green/Red/Transparent, 7 Colors One Specification Material 【You will receive】: The package includes 1 x car tachometer + 1 * shift light + 1 x user manual + 1 x mounting bracket + 1 x mounting screw set. The tachometer case is made of high-quality plastic, which is hard and wear-resistant and can be used for a long time. Features: 0-11,000 RPM measurement, shift light RPM is adjustable. Peak Sound and LED Flash When RPM Warning. The stepping motor is sufficient for quick response of all sorts of professional motor sports. The gauge dial is invisible while the ignition switch is off. Once the ignition switch is turned on, a clear display appears by colored LED illumination. Provide high precision in the accuracy of information generated. Adjustable color, choose the color of backlights according to personal preference. 7 colors are available. Specifications: Gauge Light Color: Light Color: Dark Blue/Yellow/Pink/Light Blue/Green/Red/Clear, 7 Colors with one gauge Material: ABS Gauge Display: LED Shift light: Green First and then turn Red Measurement Range: 011,000 RPM Powered By: DC12V Diameter: 5 inch Fitment: 4 6 8 cylinders petrol engine Package Package Weight: 550g Package List: 1* Tachometer Gauge 1* Shift Light 1* Mounting Bracket 1* Installation Manua