1The high quality 3 in 1 gauge makes use of the stepping motor to improve sensitivity. 2Numbers and pointer clearly show the information, you can know about your vehicle quickly. 3Lighting on the dial for easy reading in the darkness, no need to light by yourself. 4Easy installation with users manual in English, professional installation is highly recommended. 5Equipped with functions such as low power consumption, long life, high precision and high definition. Item Type: Tachometer Material: ABS + Stainless Steel Voltage: 9-32VDC Display: Rotation speed, water temperature, oil pressure, Cumulative hours after starting Waterproof Dustproof Rating: IP67 Application: For Car Truck 1 x Tachometer 1 x Manual 1 x Signal Harness