[Digital Meter] Simply connect the device to the power supply via the meter socket to monitor the power consumption in real time. Save energy and money and protect the environment. [7 Accurate Measurement Modes] The meter socket is equipped with an LCD display for easy data reading. The power consumption meter with 7 modes is used to monitor power, voltage, frequency, current, power factor, cost, minimum and maximum power and cumulative power. [Efficient and easy to use] The power meter socket is an ideal choice for household appliances, such as computers, washing machines, televisions, game consoles, routers, refrigerators, kitchen appliances and household lighting. To the greatest extent. [Built-in battery] Use the built-in battery to save data after unplugging or turning off the device. In addition, it is more convenient to configure and program the meter before plugging it into the outlet. When the total power exceeds the maximum power of the power meter (3680W), the LCD screen will flash and display OVERLOAD. Specifications: If the buttons do not respond, press the RESET button to reset the device. Working Voltage: 230V, 50HZ Working Current: Max 16A Wide Voltage Range: 230V -- 250V Voltage Accuracy: 2%