Waterproof Shock-proofThis voltmeter uses a fully enclosed enclosure, a potted and fully waterproof design. Long-term immersion in water can still work normally, and it is more resistant to moisture, oil and vibration.
Real Time Voltage Reading:The digital voltmeter has high accuracy, can give a real time voltage reading of your batteries. You will never need to worry about batteries going dead.
Wide Voltage RangeThe 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.
Easy To MountOnly two connection wires, just connect + to + and - to -. If you want to connect it through a key switch then connect + to switch, switch to battery +, and - to - (pls refer to diagram).