Usage Tips:Features: The Needle is Smooth Sweeping and Surpasses the Version in the Boat(the Needle doesn'for t Bounce all over the Place as the Boat is Underway or in Rough Sea Conditions). Gauge fit for boat, car, motocycle, truck, ect. Input signal: 0~190 ohm (European standard) or 240~33ohm (European standard). Suitable for all kinds of oil level sensors to display the position of the oil for tank level. The instrument adopts the instrument stepper motor core, which can make the product have low efficiency, long life and high precision. Main application areas: boats, construction machinery, vehicles, generator sets, engines, agricultural machinery, etc. Specifications: Material: Stainless Steel + Plastic Size: Approx.5.5cm/2.17inch Style: silver edge white bottom Style: white edge and white bottom Style: silver edge black bottom Style: black edge and black bottom Voltage: 9-32V Package Includes: 1x Fuel Level Gauge note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.