This compact triple gauge kit comes with a 2-in diameter dial face. It has a bourdon tube meter movement for accuracy and durability and has a back-lit illumination for night viewing. It has a volt range from 8 to 18-volts and a water temperature range from 130 to 280-degrees Fahrenheit. It can also be connected to the dash light for dimmer control. It includes adaptors for installation on most popular vehicles, both foreign and domestic and it comes with complete illustrated instructions in English, French, and Spanish.