1、MAIN FUNCTIONS: The power meter plug can be used to monitor power, energy, volts, amperes, Hz, power factor, cost, minimum and maximum power, cumulative date and time. 2、CLEAR DISPLAY: The 2.36x1.85in large screen is used to provide clearer display backlight, with 7 display modes and 180° full width viewing angle to help you read data easily. 3、OVERLOAD ALARM: When the overload power is exceeded, Overload will be displayed to warn the user. All buttons will stop working and work when the load power is reduced or removed. 4、DATA STORAGE: When you take out the power meter from the socket or the electrical appliance from the power monitor, the power meter will record your power consumption data for easy use next time. 5、PRACTICAL TOOL: The power meter is an ideal choice for monitoring the power consumption of household appliances, controlling power consumption and saving money, small and practical.