1、Multi Function: The power meter plug can monitor the power (W), energy (kWh), volt, ampere, hertz, power factor, cost, minimum and maximum power (W), cumulative date and time of the appliance. Easily understand various parameters and electricity charges. 2、Large Screen Display: 2.36x1.85 inch large screen with backlit function, can display more clearly no matter day or night, 180° full width viewing angle is very suitable for reading and recording data at any angle. 3、Safety Design: When the electrical power exceeds overload power, the LCD will display "overload" to warn the user, and all buttons will stop working. Only when the load power is reduced or removed can they work. Default overload power is 3680W, which can be adjusted from 0 to 3680W. 4、Data Memory: When you take out the power meter from socket or electrical appliance from power monitor, the power meter will record your power consumption data. This function can also automatically save data in case of sudden power failure. 5、Practical Tool: Our power meter is ideal for monitoring the power consumption of household appliances, controlling power consumption and saving money.