Feature 1ACCURATE READINGS: The 85mm meter showcases a 3 in 1 gauge that precisely measures tachometer values (0 to 6000RPM), fuel levels 240 to 33ohms, 0 to 90ohms, 0 to 190ohms, 10 to 180ohms (Can be adjusted), and voltage (8 to 16V), giving you key information at a single glance. 2ROBUST CONSTRUCTION: Made from metal materials, this boat tachometer is engineered for strength and durability, ensuring it remains a practical tool for tracking your vehicle's performance over an extended period. 3APPLICATION FLEXIBILITY: This boat RPM gauge is compatible with a diverse range of vehicles, such as cars, marine crafts, boats, trucks, motorcycles, and off road vehicles, making it a flexible component for any vehicle dashboard. 4SEAMLESS INSTALLATION: Designed for straightforward installation, this 3 in 1 tachometer gauge can be easily connected to any 4, 6, 8, 10, or 12 cylinder gas powered engine in 12V vehicles, facilitating quick upgrades or replacements. 5EXTENSIVE PERFORMANCE MONITORING: Offering multiple functionalities including RPM, fuel level, and voltage readouts, this tachometer delivers extensive performance monitoring that aids in enhancing your vehicle's efficiency.Item Type: 3In1TachometerMaterial: MetalVoltage: DC 9-32VRPM Gauge: 6000rpmVoltage Gauge: 8-16VFuel Gauge: E, 1/4, 1/2, 3/4, F7 Color Backlight: Backlight Sequence: Red (Default), Green, Blue, White, Yellow, Cyan, Purple, AutoAuto: Switches every minute, cycling through the above sequenceFitment: for Trucks, Tractors, 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 x3In1Tachometer1 x User Manual