Product FeatureUltra-Small Size: The overall size is only 4 cm x 2.5 cm x 2.3 cm, and the panel area is slightly larger than a 1-yuan coin.Waterproof, Dustproof and Shockproof: The table is filled with potting glue, so it can work normally for a long time even in a certain pressure of water, and it can fully adapt to the electric car’s daily rain and sun, and it has a lot of dust and vibration environment of.Ultra-Wide Voltage Range: The range of adaptation to the input voltage is as wide as 15-120V, whether it is an electric car of 36V, 72V, or even 96V, it can fully adapt to it. There is no need to worry about high voltage will be burned, or low voltage Normal measurement.Super Simple Wiring: Only two wires are connected, red is positive, black is negative. There is a reverse connection protection circuit in the watch, and it will not burn if reversed.Product SpecificationType Waterproof Digital Display Voltmeter for Electric VehiclesDisplay Color BlueDimensions 1.95 “x 1.2” x 0.95 “