Description 9 in 1 DC battery monitor meter: One interface displays nine measurement parameters at the same time, including Voltage(0-200V), Current(0-300A), Power(0-20000W), Impedance( 0-1000Ω), Internal Resistance(0-999mΩ), Capacity(0-1000AH), SOC, Energy Consumption(0-9999kWh) and Running Time(0-999h)   Spartan Power Battery Monitor & Meter Features: Multifunctional battery monitor & meter displays: Battery Voltage, Discharge Current, Discharge Power, Discharge Impedance, Internal Resistance, Capacity, SOC, Energy, Running Time Great for use with a solar charge controllers, inverters, automobiles, RV, vans, truck campers, boats, etc 0-200 Volts DC, 100A & 300A Max models available. No Screw Installation Two Year Warranty