Feature 1PRECISE MEASUREMENT: The 85mm tachometer features a comprehensive 3 in 1 gauge that accurately measures tachometer readings (0 to 8000 RPM), fuel levels (240 to 33 ohms, 0 to 90 ohms, 0 to 190 ohms, 10 to 180 ohms adjustable), and voltage (8 to 16V), providing you with all the essential information at a glance. 2HIGH STRENGTH MATERIALS: Crafted from premium metal materials, this tachometer is designed for durability and longevity, ensuring that it remains a dependable companion for monitoring your vehicle's performance over time. 3VERSATILE APPLICATION: This boat RPM gauge is suitable for a wide range of vehicles, including cars, marine vessels, boats, trucks, motorcycles, and off road vehicles, making it a versatile addition to any vehicle dashboard. 4EASY INSTALLATION: Designed for easy installation, this boat tachometer gauge can be easily connected to any 4, 6, 8, 10, or 12 cylinder gas powered engine in 12V vehicles, allowing for quick upgrades or replacements. 5COMPREHENSIVE PERFORMANCE MONITORING: With various functions including RPM, fuel level, and voltage display, this tachometer provides comprehensive performance monitoring that helps maintain your vehicle's efficiency, ensuring more informed driving.Item Type: 3 in 1 TachometerMaterial: MetalVoltage: DC 9-32VRPM Gauge: 8000rpmVoltage Gauge: 8-16VFuel Gauge: E, 1/4, 1/2, 3/4, FSeven 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 x Tachometer1 x User Manual