100% brand new and high qualityDescription:VA7510S is a basic multi-functional instrument,may display the voltage, current, power, capacity, energy, running time, and other physical parameters in real time,over-voltage, under-voltage, over-current protection can be achieved through reserved relay interfaces.And the meter uses 1.8-inch color LCD as display,display data more comprehensive and clear,easy to observe.This meter is ideal for applications that require monitoring of the output voltage and current as well as charging and discharging batteries. Features:Bidirectional current detection,for detecting charge and discharge users can easily detect bidirectional current properties,no need to change the direction of the connection.Power off power memory function,after power off, the number of AH and WH before power off can be memorized,Convenient for observation and measurement.Time and AH data clearing function,do not affect the next measurement.The percentage of AH can be set without affecting direct discharge measurement.Voltage, current, AH, WH, time, power, simultaneously displayed,comprehensive and clear information display.With output disconnect function key, flexible on or off output.With over-voltage, over-current and other extended protection functions.It can be calibrated online, enabling customers to promptly correct the error.In the liquid crystal display can be closed when necessary, reduce power consumption.Notice:If you need electronic manual, please contact us. Specification:Input voltage: 6V~75V(Self-powered measurement ) 0~120V(Voltage measurement range when externally powered)Voltage Measurement: 0.01V~120VInput current measurement range: 0~100A/ 0~200A/ 0~300A/ 0~500AElectric Current: 0.1A~100A/ 0.1A~200A/ 0.1A~300A/ 0.1A~500Acapacity measurement range:0.001AH~65000.00AHenergy measurement range: 0.00KWH~99999.9WHExternal supply voltage range: 6-60VDisplay Size: 1.8-inch color LCD display Note:Transition: 1cm=10mm=0.39inchPlease allow 0-1cm 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. Thank you Package includes:1 x Combo Meter