Features: Measure and display voltage (0-90V), current (0-100A), power, battery capacity, amp-hour, watt-hour and time simultaneously. Can be used as battery charge-discharge tester meter for automobile and car battery; as battery capacity monitor for photovoltaic system; as voltage meter, current meter, power meter, etc-. The multimeter can detect current in dual-direction without changing the wiring direction when used for monitoring charging and discharging. Over-voltage protections, over-current protections, over-power protections, over-charged protections, time limitation, etc-. LCD color display; AH power off memorized function; time & AH resettable; calibration function; automatically/manually switch-off LCD screen; with output control button to enable/disable output. Package Includes: 1x Charge-Discharge Monitor Specifications: Material: plastics note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.