Safety Performance - The LCD screen displays an overload warning. When the current exceeds 16A or the power exceeds 3680W, the "OVERLOAD" icon on the LCD screen will flash to warn the user and automatically disconnect the power supply to ensure the safety of household electricity; when the detected power value is less than 1.0W, it is regarded as machine power consumption and does not accumulate time. Bullet Point Multi-function flow socket - monitor power (w), energy (kwh), voltage (V), amperage (A), power factor, cost and minimum and maximum power, very suitable for monitoring the power consumption of household appliances, so maximum Save energy to the limit. Real-time monitoring - Operate the COST, FUNCTION, UP and DOWN buttons according to the instructions to set the electricity price. You can monitor energy consumption and electricity bills in real time. You can determine the cost of the backup device, the power factor, whether the device is actually charged, and whether the device is charged. Help you reduce energy consumption and save money for a long time. Data retention function - with memory data retention function, unplug the device from the power meter or unplug the power timer from the power outlet, the final data will be saved, and the meter can be moved and viewed without losing data. Large backlit LCD display - the rate socket has a large, clear backlit LCD display, easy to read, and easy to read and record data, especially in the dark, allowing you to clearly understand the data.