Vehicle voltmeters and battery indicators

Dashboard voltmeters continuously display the electrical-system voltage and help monitor battery condition and charging performance. The range includes stand-alone digital modules, dual voltmeters for two batteries, capacity indicators and combined instruments with an ammeter, thermometer or clock. Cars, motorcycles, boats and working vehicles can also be equipped with panel-mounted or surface-mounted USB and USB-C chargers with an integrated voltmeter, versions for cigarette-lighter or DIN sockets and complete switch panels. When choosing, match the vehicle's nominal voltage to the meter's measuring and supply range. Check the mounting-hole size, depth behind the panel, display colour and readability, water-protection rating and, for chargers, supported charging standards and output power. Protect the wiring with a suitable fuse and observe the correct polarity.