2-1/16in P/S II Voltmeter 8-18

The AutoMeter 2-1/16in P/S II Voltmeter 8-18V is a precision electrical monitoring gauge designed for drivers and mechanics who demand real-time visibility into their vehicle's charging and electrical system performance. This analog voltmeter is essential for diagnostics, custom electrical builds, and vehicle modifications where sustained power delivery matters—whether you're running aftermarket accessories, high-draw audio systems, or upgrading to a performance alternator. The 8–18 volt range covers both standard 12-volt systems and higher-output dual-battery setups common in trucks and off-road rigs.

Built on AutoMeter's Phantom II platform, this voltmeter features a white face with crisp, easy-to-read markings and employs a short-sweep mechanical movement for instant response without lag. The 2-1/16-inch diameter fits snugly into standard dash pods, custom pillar mounts, or center console installations without consuming excessive real estate. Electric operation means the gauge draws minimal current from your electrical system while delivering consistent accuracy across the full voltage range—critical for identifying alternator drop-off, parasitic drain, or charging-circuit faults during extended driving or high-load conditions.

This gauge suits any enthusiast upgrading their engine bay with aftermarket electronics, those troubleshooting voltage regulation issues, or builders integrating secondary power systems. Installation requires basic wiring—a ground, ignition 12V feed, and sensing line to the positive battery post or alternator output—making it accessible for DIY mechanics with moderate electrical experience. Compact and lightweight at under half a pound, it integrates seamlessly into custom gauge clusters, race car builds, and daily-driver restorations where factory instrumentation falls short.