Measuring function of electrical parameters (voltage, current, power, electric quantity). Voltage alarm function (over voltage alarm threshold, backlight and power flicker prompt). Power button reset function. It is designed to adapt to a poor light situation. Power off data saving function, prevents from data losing when the power's off. Full display function of large-screen LCD (display voltage, current, power and power at the same time). Condition: 100% Brand NewItem Type: DC Current Voltage MeterMaterial: ABSWorking Voltage: 6.5~100VDCTest Voltage: 6.5~100VDCRated Power: 20A / 2000WMeasurement Accuracy: Level 1.0Display and ButtonDisplay Interface:The large LCD screen displays the voltage, current, power and power parameters simultaneously.Display Format: 1. Power: Test range 0~2kW The display format within 1kW is 0.0~ 999.9W; The display format above 1kW is 1000~2000W. 2. Electricity: Test range 0~9999kWh The display format within 10kWh is 0~9999Wh; The display format above 10kWh is 10~9999kWh; 3. Voltage: Test range 6.5~100V Display format 6.50~ 99.99V 4. Current: Test range 0~20A The display format is 0.00~ 20.00Button: 1. Control of the backlight The backlight can be turned on or off by short pressing the button, and the poor light state is automatically saved when the power is turned off. 2. Reset the batteryStep 1: Press and hold the button until the ''CLr'' character is displayed in the power display area, and then release the button; Step 2: At this time, the battery flashes to indicate that the battery is currently reset. If you press the button again for a short time, the power data is cleared and reseted and flashing; Step 3: If there is no pressing operation within 5 seconds, it means that the power data is not reseted and exits the reset state. 3. Voltage alarm value setting Step 1: Press and hold the button until the ''SET'' character is displayed in the power display area, and then release the button; Step 2: After entering this state, the current high voltage alarm value is displayed in the voltage area, and the current low voltage alarm value is displayed in the current area, and the lowest digit starts to flash. At this time, you can ''+1'' this digit by short pressing the button. When it is over 3 seconds, it will automatically switch the adjusted bit, from high voltage alarm value to low voltage alarm value, a total of 6 digits, the range of voltage alarm threshold setting is 6.5~ 99.9V; Step 3: After setting, press and hold the button until the screen displays ''PASS'' character to indicate that the setting is successful and automatically exits the setting state.