2-1/16in C2/S Voltmeter Gauge 8-18 Volts

The 2-1/16in C2/S Voltmeter Gauge 8-18 Volts is an essential diagnostic and monitoring instrument for any serious vehicle builder, restoration shop, or high-performance enthusiast. This compact dash gauge reads your electrical system's health in real time, allowing you to detect alternator output problems, battery discharge, and parasitic drain before they strand you on the road. Whether you're wiring a custom hot rod, diagnosing a charging system fault on a daily driver, or verifying performance after an engine swap, this voltmeter provides the precise voltage feedback every serious mechanic needs.

Built with AutoMeter's proven reliability, this gauge delivers accurate 8–18 volt monitoring across the full range of automotive electrical systems, from stock 12-volt setups to high-output race alternators pushing 16+ volts during peak load. The 2-1/16-inch bezel fits seamlessly into standard automotive gauge clusters, while the C2/S design ensures repeatable accuracy and fast needle response to rapid voltage fluctuations. Stainless hardware and a durable face protect against vibration, heat, and corrosion—critical factors in engine bays and modified vehicles where conditions demand more than basic instrumentation.

Professional technicians and weekend builders alike rely on this gauge to validate charging system upgrades, test battery conditioning during winter storage, and troubleshoot intermittent electrical gremlins. Installation is straightforward for anyone comfortable with basic dash wiring; the gauge mounts into standard 2-1/16-inch openings and taps into the battery positive and engine ground. Its compact footprint and refined needle sweep make it perfect for custom dash layouts, vintage restorations, and modern performance vehicles where electrical system monitoring is non-negotiable.