Specifications: Power Meter Displays Power Consumption: 0.5W Working Voltage: 230VAC Frequency Display: 50HZ Working Current: Max 16A Wide Voltage Range: 230V-250V Set Power Display (Watt) to 0W~9999W; but the actual displayed power (Watt) is 0~3680W Time Display Range: 0 seconds ~ 9999 days Voltage Display Range: 0V~9999V Current Display (Amperes): 0.000A~16.000A Frequency Display: 0Hz~9999Hz Price Display Range: 0.00COST/KWH~99.99COST/KWH Total KWh and Cost Display: 0.000KWh~9999KWh, 0.00COST~9999COST Overload Alarm: When the current exceeds 16A or the power exceeds 3680W, the overload alarm symbol will flash. When the detected power value is less than 1.0W, it is considered local power consumption, and the time is not accumulated. Working Current: 16A Measurement Accuracy: ±2% Packing List: 1*Power Meter 1*User Manual 1*Screwdriver Safety Alarm Function: LCD display overload warning. Battery alarm value can be set. When the power exceeds the set value, exceeds 3680W, or the current exceeds 16A, the OVERLOAD icon will flash on the LCD screen to warn the user that the home is protected. Safe use of electricity is very helpful for reducing electricity consumption and ensuring safety. Multifunction Socket: Monitor equipment power (w), cumulative electricity consumption (kwh), cumulative electricity cost (cost), carbon dioxide emissions (KgC02), electricity days (DAY), voltage (V), amperes (A), and power factor (POWER FACTOR), AC frequency (Hz), and minimum and maximum power, ideal for household appliance energy monitoring. Real-time monitoring of electricity consumption and flow based on daily electricity consumption records to ensure reasonable electricity consumption and save electricity and money for you. Two options can be set according to the instructions - single tariff mode and dual tariff mode. Dual tariff is often used for time division. Data Retention: Memory data retention allows you to disconnect the device from the meter or unplug the meter from the socket. The latest data is saved, and counters can be moved and displayed without data loss.