[Digital Meter] Simply connect the device to the power supply via the meter socket to monitor energy consumption in real time. Save energy and money and protect the environment. [7 Accurate Measuring Modes] The meter socket is equipped with an LCD screen for easy reading of data. The electricity 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 wattmeter socket is an ideal choice for household appliances, such as computers, washing machines, TVs, game consoles, routers, refrigerators, kitchen appliances and home 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 set up and program the meter before plugging it into the socket. 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%