【4 in 1 Multimeter】 This digital DC voltmeter ammeter is used to measure voltage, current, energy and active power of electrical appliances. It has passed CCC, FCC, CE certification. 【Measuring Range】 Voltage test range: DC 6.5~100V, Current test range: 0~100A, Active power test range: 0~10kW, Energy test range: 0~9999kWh. Please DO NOT exceed the rated parameters. 【More Function】 Large LCD display with backlight; Voltage alarm function; Energy reset function; Data storage when power off. 【Wide Application】 This DC voltmeter is suitable for indoor use and cannot be used outdoors. It can be used to monitor the volt, ampere, power and energy consumption of battery, solar system, electric bike generator and other fields. The load cannot exceed the rated voltage and current. 【Package】 Package: 1 * DC multimeter (without shunt), 1 * user manual. Pay attention: Please connect according to the wiring diagram we provide. If you want to try another connection, please contact us first, a bad connection will cause the product to burn out or not work. Product Description Voltmeter Ammeter Tester Indicator Voltage Current Power Energy Digital DC 6.5-100V 100A Volt Amp Watt Multimeter LCD Display Panel Function for measuring electrical parameters (voltage, current, active power, energy). Voltage test range: DC 6.5-100V, Current test range: 0-100A, Power test range: 0-10kW, Energy test range: 0-9999kWh. Voltage alarm function (overvoltage alarm threshold, backlight and voltage flashing at alarm). The energy key reset function. Store data when power off. Large LCD screen (display voltage, current, active power and energy at the same time) Backlight function. Package: 1* dC meter, 1* manual. Please note that the package does not have an external shunt. If you want it with a shunt, please check our other models: 100A+ 50A/75mV shunt and 100A+ 100A/75mV shunt. Function Backlight Control: Press the key to turn the backlight on or off. The backlight status will be saved when the power is turned off. Energy Reset: Press and hold the key for 5 seconds until the digit flashes, then release the key. Press the key again, then the energy value is cleared and exits the reset flashing state. If you don't want to clear, press and hold the key again for 5 seconds until the number is not flashing, it means the energy value is not cleared and will exit the reset state.Voltage AlarmPress and hold the key until the power display area displays "SET", release the key.The voltage area displays the current high voltage alarm value, the current area displays the current low voltage alarm value, and the last digit starts flashing. Press the key to set the value. It will automatically change the digit without operation for 3 seconds, then press the key to adjust the value as well. Voltage alarm threshold setting range: 6.5V to 99.9V. After completing the settings, press and hold the key until the display shows "PASS".