Feature 1MULTI FUNCTIONAL: 110mm gauge incorporates a tachometer, fuel level gauge, and water temperature gauge, delivering precise readings, giving you convenient use. 2VERSATILE APPLICATION: Designed for a wide range of vehicles, suitable for cars, boats, trucks, tractors, and yacht, ensuring adaptability for your needs. 3PREMIUM DESIGN: Constructed from high strength metal material. Made to last, this gauge is a dependable companion for monitoring important parameters. 4EASY INSTALLATION: Cut a 111mm (4 3/8in) diameter panel hole and insert the gauge with 55mm (2 3/16in) clearance behind. Secure with screws for a snug fit. 5STYLISH AND FUNCTIONAL: With its modern and stylish appearance, the speedometer not only functions effectively but also enhances your model's interior.Item Type: 3 in 1 SpeedometerVoltage: DC 9-32VSpeedometer: 8000rpmOil Pressure Gauge: 0-150PSIWater Temperature Gauge: 100-250Size: Approx. 110mm (4-3/8in)7 Color Backlight: Red (default), Green, Blue, White, Yellow, Cyan, Purple, AutoAuto: Switches every minute in the above sequenceFitment: Suitable for trucks, tractors, trailers, cars, RVs, boats .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Speedometer1 x Instruction Manual