2PCS Battery Meter, Waterproof DC 12V Voltmeter Waterproof LED Digital Display Voltage Gauges Round Car Voltmeters Meter Voltage Tester Gauge Meter for Marine Car Motorcycle Truck Boat RV, Short Body

REAL-TIME TEST: The 12 V waterproof LED digital display voltage gauges real-time testing battery voltage to know the status of your vehicle battery. Practical function!
ACCURATE: Accuracy is 0.1V, providing an accurate reading to avoid car battery damage. Digital voltmeter display- precise 3-bit LED digital display, this 12v voltmeter gauge is very easy to read.
DURABLE MATERIAL: IP65 Waterproof, made of sturdy ABS material against fire-retardant materials.
EASY TO INSTALL: Plug and play. Easy to install and use, screws and insulated terminals are included, just use a screwdriver (not included) to install.
WIDELY APPLICATION: The voltage gauge fits most kinds of DC 12V voltage vehicles, such as automobiles, motorcycles, buses, caravans, trailers, ships, boats, yachts, and more.