JAMHER 6 Pieces Waterproof DC 4V-100V Voltmeter Gauge, Car Voltage Gauge LED Digital Display for Cars Vehicles Motorcycles Boats Truck RV (Red & Blue & Green)

Digital Voltmeter Display: Precise 3-bit LED digital display, providing an accurate reading to avoid car battery damage.

Real-time Test: This battery monitor can measure and display voltage data in real-time, allowing you timely grasp the state of battery voltage between fully charged and discharged of this dc voltmeter. If the positive and negative poles are connected in reverse, the device will not burn out, but there will be no display

Durable and Waterproof: Made with high-quality plastic material, waterproof and durable for long-lasting performance.Reliable in challenging environments, withstands water exposure, ensures product longevity

Compact and Easy Installation: Compact size allows for convenient installation in tight spaces, saving time and effort.Space-saving design, hassle-free installation, perfect for various vehicle types.

Measuring range: DC4-100V；The voltage gauge fits most kinds of voltage vehicles, such as automobiles, golf carts, motorcycles, buses, caravans, trailers, ships, boats, yachts, and more