4 in 1 MultimeterThis digital DC voltmeter ammeter is used to measure voltage, current, energy and active power of electrical devices. Measuring range Voltage test range: DC 6.5~100V, current test range: 0~20A, active power test range: 0~2kW, energy test range: 0~9999kWh. Please DO NOT exceed the rated parameters. 20A are only for short loads, but not for continuous operation. We recommend upgrading to 50A version if using with continuous output above 15A. More FunctionLarge LCD screen with backlight; voltage alarm function; energy reset function; Data storage when power off; Integrated shunt, no need for external shunt. Wide ApplicationThis DC voltmeter is suitable for indoor use and cannot be used outdoors. It can be used to monitor volt, amp, power and power consumption of battery, solar system, electric bike generator and other areas. The load cannot exceed the rated voltage and current. PackagePacking: 1*DC multimeter, Pay attention: Please connect according to the wiring diagram we provide.