Electrical Parameter Measurement: This multimeter electrical tester is able to display AC voltage, AC current, active power and electric energy simultaneously. Voltage Test Range: AC 80-260V, Current Test Range: 0-100A, Power Test Range: 0-22kW, Energy Test Range: 0-99999kWh. Overload Alarm: You can set the power alarm threshold, when it overloads, the backlight and power will flash to alarm. Multi Function: Large LCD display; Energy key reset function; Data storage when power off; Backlight function. Our multimeter suitable for high power places, please follow the instructions or picture wiring, do not connect the wrong wiring, check whether the circuit is connected correctly before power on.