6 Measurement Functions: A single interface simultaneously displays 6 measurement parameters, including Voltage (AC 80-260V), Current (0-100A), Power (0-22000W), Energy Consumption (0-999kWh), Frequency (45-65Hz), and Power Factor (0-1PF). Backlight Control: The backlight can be turned on or off with a short press of the button, and data is automatically saved when the backlight is off. Alarm Function: You can set the current alarm threshold. When the backlight flashes, it indicates that the current power exceeds the overload power, warning of an overload. The alarm stops when the current power is below the overload power. The battery warning threshold can also be preset. Power Button Reset Function: Step 1: Press and hold the button for 5 seconds until the power digit flashes, then release the button. Step 2: Briefly press the button again to clear battery data and exit the flashing mode. Step 3: If no button is pressed within 5 seconds, performance data will not be cleared, and the reset mode will end. Wide Application: Commonly used in home appliances, solar energy systems, industrial assembly lines, etc.