Specifications: - Power meter shows power consumption: 0.5W - Working voltage: 230VAC - Frequency display: 50HZ - Working current: max 16A - Wide voltage range: 230V-250V - Set the power display (Watts) to 0W~9999W; but the actual displayed wattage (Watts) is 0~3680W - Timing display range: 0 seconds ~ 9999 days - Voltage display range: 0V~9999V - Current display (Ampere): 0.000A~16.000A - Frequency display: 0Hz~9999Hz - Price display range: 0.00COST/KWH99.99COST/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 flashes. When the detected power value is less than 1.0W, it is regarded as the 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. The 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 to warn the user that the home is protected. Safe use of electricity is very helpful to reduce electricity consumption and ensure safety. Multi-function socket - monitoring equipment power (w), cumulative electricity consumption (kwh), cumulative electricity cost (cost), carbon dioxide emissions (KgC02), electricity days (DAY), voltage (V), ampere (A) and power factor (POWER FACTOR), AC frequency (Hz) and minimum and maximum power, ideal for energy monitoring in home appliances. 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 rate mode and double rate mode. Double rate 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 outlet. Last data is saved and counters can be moved and viewed without data loss.