Electrical reliability starts with knowing exactly what your charging system is doing. The Speco Voltmeter / Volt Gauge is a practical addition to street machines, classic restorations, kit cars, hot rods and other 12V automotive applications, giving drivers clear visibility of battery and alternator performance at a glance. With clearly defined zones and a central battery icon, it allows for rapid diagnostics while driving, helping to identify undercharging or overcharging conditions before they become a problem.
Charging System Monitoring: Displays real-time battery voltage to track alternator and electrical system performance.
8–16 Volt Operating Range: Wide voltage scale suitable for standard 12V automotive systems.
Colour-Coded Diagnostic Zones: Segmented dial for quick and easy interpretation Red Low-Voltage Zone (8V – 11V) Green Optimal Charging Zone (11V – 15V) and Red Over-Charging Alert Zone (15V – 16V)
Quick-Glance Readability: Analogue needle and contrasting colour arcs provide instant voltage assessment while driving.
Universal 12V Compatibility: Designed for use across a wide range of 12V automotive systems.
Specifications:
Diameter - 2" inches (52 mm)
Measurement Type: Electrical Voltmeter
Measurement Scale: 8 to 16 Volts DC
Internal Finish - Silver face, Black markings, Red needle
External Finish - Silver bezel
Fittings Included - Mounting bracket, terminal screws
Whether you’re troubleshooting an electrical issue or simply keeping tabs on system health, the Speco Voltmeter / Volt Gauge provides clear, reliable voltage monitoring to help keep your vehicle’s charging system performing as it should.