ITEM NAME:0-200V 0-300A Car Battery Discharge Indicator Capacity Tester Power Energy W4T9 0-200V 0-300A Car Battery Discharge Indicator Capacity Tester Power Energy W4T9 this meter is mainly used to test all kinds of battery's voltage, discharge current, discharge power, discharge impedance, internal resistance, capacity, dump energy, energy consumption and running time, and display the measurement data through LCD screen. PZEM-015: Measuring Range 300A (use external shunt, can matched with 50A, 100A, 200A, 300A four kinds of shunt). PZEM-015 0-200v 0-300A Car Battery Discharge Indicator Capacity Tester Power Energy Impedance Resistance voltmeter 300A shunt size:90*50*25mm Material:ABS colour:black Package Contents: 1 * Car Battery Discharge Indicator 1 * shunt