1、DEPENDABLE MOVING MAGNET TECHNOLOGY: This 3 in 1 tachometer employs moving magnet principle to drive the needle, ensuring exceptional durability, anti vibration, which delivers precise readings even in the toughest environments. 2、HIGH ACCURACY PERFORMANCE: Professionally manufactured, this RPM tachometer gauge ensures high accuracy and reliability, enabling users to view engine rotation speed with accuracy, thereby improving operational efficiency. 3、VERSATILE COMPATIBILITY: This tachometer is engineered for seamless integration with a wide variety of tacho RPM sensors, making it ideal for diverse applications such as cars, trucks, boats, derv generators, gasoline engines, as well as construction and agricultural equipment. 4、SIMPLE INSTALLATION: RPM tachometer water temp gauge is simple to install, you need to open a hole 85mm(3 3/8in) of the panel, ensure there's a 55mm space behind the panel for easy integration. 5、SECURE CONNECTION FOR STABILITY: Snaps to the harness connector for a secure connection that allows the tachometer to function properly even under strong vibration, it will perform reliably in demanding environments. Item Type: 3 In 1 Tachometer Material: Metal Voltage: DC 9-32V Tachometer: 6000rpm Oil Pressure: 0-10bar Water Temperature: 40-120℃ 7 Color Backlight: Red (default), Green, Blue, White, Yellow, Cyan, Purple, Auto Auto: Switches every minute according to the above sequence Fitment: for Truck, Tractor, Car, Motorhome, Boat 1 x Tachometer 1 x Manual