Safety Performance - The LCD screen displays an overload warning. When the current exceeds 16A or the power exceeds 3680W, the "OVERLOAD" icon flashes to alert the user and automatically disconnects the power supply to ensure household electrical safety. When the measured power value is less than 1.0W, it's considered the machine's power consumption and is not accumulated. Multifunction Power Meter Socket - Monitor power (W), energy (kWh), voltage (V), current (A), power factor, cost, and minimum/maximum power. Ideal for tracking the power consumption of household appliances to maximize energy savings. Real-time Monitoring - Switch between COST, FUNCTION, UP, and DOWN buttons as per instructions to set the electricity price. Monitor energy consumption and electricity bills in real-time. Determine the cost of backup devices, power factor, whether a device is actually loaded, and if it's overloaded. Helps reduce power consumption and save money long-term. Data Retention Function - With a memory data retention function, unplugging the device from the power meter or unplugging the timer from the power outlet saves the final data. The meter can be moved and read without data loss. Easy to read and record data, especially in the dark, ensuring clear data comprehension.