Multi-function: The function of measuring electrical parameters (voltage, current, active power, electrical energy, frequency, power factor). The test voltage range is 80~260VAC, the current test range is 0~100A, the power test range is 0~22000W, the energy test range is 0~999kWh, the frequency test range is 45~65Hz, and the power factor test range is 0~1PF. Multi-function: The function of measuring electrical parameters (voltage, current, active power, electrical energy, frequency, power factor). The test voltage range is 80~260VAC, the current test range is 0~100A, the power test range is 0~22000W, the energy test range is 0~999kWh, the frequency test range is 45~65Hz, and the power factor test range is 0~1PF. Multi-function: The function of measuring electrical parameters (voltage, current, active power, electrical energy, frequency, power factor). The test voltage range is 80~260VAC, the current test range is 0~100A, the power test range is 0~22000W, the energy test range is 0~999kWh, the frequency test range is 45~65Hz, and the power factor test range is 0~1PF. Alarm display: overload alarm function (over power alarm threshold, backlight and flashing power alarm display) Preset power alarm threshold function (power alarm threshold can be set) Reset function: The reset function of the power button. Data is saved when the device is turned off. The accumulated energy can be reset by pressing a button. Backlight display: Backlight, short press the button to turn on or off the backlight. The backlight has a memory function. It saves the power on or off state when the device is turned off. Size: 9*5*2.5cm Colour: Black Packing list: 1pcs