KAD round hour meter is used to display the battery's power, which is clear and clear; 10 segments show the battery's power from high to low, and when the voltage is too low, the meter will flash warning of charging; the battery's power indicator instrument, all solid state, easy to install, is a golf cart, commercial cleaning equipment, mobile help vehicle, electric bicycle, electric ship's motor, medical equipment and many other applications. Equipped with excellent reliability under extremely harsh operating conditions, it is suitable for all electric vehicles