Features: With digital display, intuitives observation. Parameter display precisions and stability, low power consumption. Easy installation, stable performances, antivibration and antibump. Fitment: Fit most of 12Volt gasolines vehicle, Fit 2" or 52mm Diameter Gauge. Enhances your driving experience by monitoring your vehicle's performances with this practical gauge set. Specifications: Material:ABS,Metal Type:Tachometer , Water Temperature Meter(optional) Diameter:52mm/2'' Ranging:0-9000RPM Note:The tachometer is suitable for installation and use in 4, 6, and 8 cylinders vehicles, and is only suitable for 12V gasolines vehicles Package Includes: 1x Tachometer Gauge/Water Temperature Meter note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.