Specifications: Product Name: Tachometer Voltage: 12V Diameter: 52mm Indicating Range: 0-6000 RPM (on dashboard) Length: 585mm/23in Housing Color: White and Black, Light Color: White Material: Metal and Plastic Quantity : 1 piece Wire Installation: Yellow Wire (+): 12V Instrument Lighting Green Wire: Connector Oxygen Sensor (not included) Red Wire: 12V Terminal on Ignition Switch (or other power source) Black Wire (-): Ground Features: - Internal Diesel gauge. - No vibration while driving. - Bright white LED lighting for night driving. - The product comes with a wire to connect the meter to your car. - The clock is designed with black panel and clear lens. - Tachometer for diesel clock instrument with white LED color. - Please note that this meter is for indoor use and is not waterproof. Accessories: Suitable for diesel engines (Compatibility is for reference only. Please make sure the item fits your car before purchasing.) Note: 1. We provide clear pictures and measurements (when possible). Please check whenever possible to make sure the item is what you need. 2. Please allow 0.5-1 inch differences due to manual measurement. (1 inch = 2.54 cm) 3. Although instructions are included, professional installation is highly recommended! Package includes: 1x electronic tachometer instrument 1x cable 1x installation instructions<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store