Specification: Product name: water temperature gauge Material: metal Housing color: black Voltage: 12 V Length :53.8mm/2.11in Diameter: 56.4mm/2.22in Black: negative Red: positive Green: connected to sensor Placement on vehicle: front Quantity: 1pc Feature :1. Racing look enhance the characteristic to your car.2. Comes with installation manual.3. Smoke tint lens during the day, Clear & bright LED Display with 7 colors during the night.4. The button on the lens can switch the color of light you want. Fitment: Universal Car 2/52mm diameter water temperature gauge (The compatibility just for reference. Please make sure the item fit for your car before purchase.) Note :1. We provide clear pictures, measurement where possible. Please check as much as possible to make sure the item the one that you need.2. The actual item maybe has slight color distinct with listing image due to different computer screens, thanks for your understanding.3. The size of item is manual measurement, please allow 0.5-1inch difference. (1inch=2.54cm)4. (IMPORTANT) No Instructions Included. Professional Installation Is Highly Recommended Package included :1 x water temperature gauge 1 x manual 1 x sensor 1 x cable