【4-in-1 Multimeter】This digital DC voltmeter ammeter is used to measure voltage, current, energy, and active power of electrical appliances. It has been approved by 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. Do NOT exceed the rated parameters. 【More Features】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 volt, amp, power and energy consumption of battery, solar system, electric bicycle generator and other fields. The load must not exceed the rated voltage and current. 【Package】Package: 1 * DC multimeter (without shunt), 1 * User Manual. Note: Please connect according to the wiring diagram we provide. If you want to try another connection, please contact us first, incorrect connection may 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 Measures 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 (over voltage alarm threshold, backlight and voltage flashing to alarm). Key resets energy. Stores 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 shunt, please see our other models: 100A+ 50A/75mV shunt and 100A+ 100A/75mV shunt. Function Backlight control Press the button to turn on or off the backlight. The backlight status is saved when power off. Reset energy Keep pressing the button for 5 seconds until the digit flashes, then release the button. Press the button again, then the energy value is cleared and you exit the reset flashing mode. If you don't want to clear, keep pressing the button for 5 seconds until the digit does not flash, it means the energy value is not cleared and you exit the reset mode. Voltage Keep pressing the button until the current imaging area displays \"SET\", release the button. The voltage area displays the current high voltage alarm value, the current area displays the low voltage alarm value, and the last digit starts flashing. Press the button to adjust the value. It automatically changes the digit without operation in 3 seconds, then press the button to adjust the value as well. Voltage alarm threshold setting range: 6.5V to 99.9V. When you are done with the settings, keep pressing the button until the display shows \"PASS\". This indicates that your setting is successful.