Features: Universal 52mm tachometer accurately measures 0-8000 RPM for 2-8 cylinder gas ngines, featuring waterproof durability and easy dashboard integration. Engineered with a bright LED backlit display, stainless steel bezel, and rugged plastic housing for clear visibility in all conditions. Ideal for car enthusiasts, marine operators, and mechanic requiring real time RPM monitoring across vehicles, boats, or yachts. Perfect for daily driving diagnostics, marine engine management, or performances tuning during automotive modifications. Enhances your dashboard with this 2 inch gauge combining precise engineering with a modern aesthetic for reliable engine speed tracking. Specifications: Component:Plastic Voltages: 12V Measuring range: 0 ~ 8000RPM Package Includes: 1pcs Waterproof Tachometer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.