6-IN-1 MULTIMETER --- Detects and displays voltage, current, active power, battery electrical energy, power frequency, and power factor on a single interface. A Practical Multimeter: This meter with a fast measurement speed of 2 times/second has a voltage measurement range of AC 50-300V, a current measurement range of 0-100A, an active power range of 0-30000W, and an electrical energy range of 0-9999999kWh. Easy to install in your home, helping you monitor voltage and current for electrical safety. Reset Function: Hold the clear button on the meter's front panel for 5 seconds to clear the meter's accumulated value. Convenient to use! 50-300V 100A Voltage Current Power Factor Frequency Electrical Energy Monitor Ammeter Voltmeter Multimeter Tester 110V 220V Digital Color LCD Volt Amp Watt Detector Reader Panel Data Auto-Storage: When the power is turned off, the meter automatically saves the current power value, reads the value, and continues to accumulate it when the meter is powered on again.