KD series volt-ampere meter is a new type of coulomb meter that can measure various physical parameters such as voltage, current, power, charge and discharge capacity, remaining time, etc. At the same time, parameters can also be set to achieve full capacity voltage, zero capacity voltage, low capacity alarms, etc. Features. The meter can automatically identify the direction of the current, and can monitor the battery capacity in real time and use a broken code liquid crystal display. The measured data display information is comprehensive and user-friendly.