Description:VA7510S is a basic multi-function instrument, it can display voltage, current, power, capacity, energy, working time and other physical parameters in real time, overvoltage, under voltage, Overcurrent protection can be achieved through reserved relay interfaces. And the meter uses 1.8 inch color LCD as the display, displays the data more comprehensive and clear, easy to observe. This meter is ideal for applications that require output voltage and current monitoring, as well as battery charging and discharging. Features: Bi-directional current detection, to detect charge and discharge, users can easily detect bi-directional current properties, no need to change the connection direction. Turn off the power memory function, after power off, the number of AH and WH before power off can be memorized, convenient for observation and measurement. The time and AH data erasing function does not affect the next measurement. The A.H. percentage can be set without affecting the direct discharge measurement. Voltage, Current, AH, WH, Time, Power, displayed simultaneously, comprehensive and clear information display. With output disconnect function key, flexible output on or off. With overvoltage, overvoltage and other extended protection functions. It can be calibrated online, allowing customers to quickly correct the error. The liquid crystal display can be closed when needed, reduce power consumption. Note: If you need an electronic manual, please sit . Specification:Input Voltage: 6V - 75V (Self-Powered Measurement)0 - 120V (External Power Supply Voltage Measurement Range)Voltage Measurement: 0.01V - 120V Input Current Measurement Range: 0 - 100A/ 0 - 200A/ 0 - 300A/ 0 - 500A Electrical Source: 0.1A - 100A/ 0.1A - 200A/ 0.1A - 300A/ 0.1A - 500A Capacitance Measurement Range: 0.001AH - 65000.00AH Energy Measurement Range: 0.00 kWh - 99999.9 whExternal Supply Voltage Range: 6-60V Display Dimension: 1.8 inch color LCD DisplayNote: Transition: 1cm=10mm=0.39 inch Please allow 0-1cm error due to manual measurement, please make sure you do not mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 x Meter Combo