Product Information. Specifications: - Electricity meter display consumption: 0.5W Operating voltage: 230VAC Frequency display: 50HZ Operating current: 16A max Wide voltage range: 230V-250V Set the power poster (watts) to 0W~9999W; but the actual power displayed (watts) 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/KWH99.99COST/KWH Display of total KWh and cost: 0.000KWh-9999KWh, 0.00COST----9999COST Overload alarm: When the current exceeds 16A or the power exceeds 3680W, the symbol \"Overload alarm\" flashes. When the measured power value is less than 1.0 W, it is considered local consumption and no time is accumulated. Operating current: 16A Measurement accuracy: 2%. Overload Warning LCD Screen: The power alarm value can be set. When the power exceeds the set value, exceeds 3680W, or the current exceeds 16A, the LCD screen will flash the OVERLOAD icon to warn the user that the home is protected. Safe use of electricity is very useful for reducing energy consumption and ensuring safety. Multifunctional Socket: monitors device power (w), accumulated electricity consumption (kwh), cost of accumulated electricity consumption (cost), CO2 emissions (KgC02), days of electricity consumption (DAY), voltage (V), amperage (A) and power factor (POWER FACTOR), AC frequency (Hz) as well as minimum and maximum power, ideal for energy measurement in household appliances. Real-time monitoring of electricity consumption and flow, based on daily electricity readings, ensures reasonable electricity use, saving electricity and money. Two options can be set according to the instructions. Single-rate mode and dual-rate mode. Dual-rate mode is usually used for time division. Data retention. Data retention in memory allows you to disconnect the device from the meter or unplug the meter from the outlet. The latest data is saved and the meter can be moved and displayed without losing data. Packing list. 1* electricity meter 1* user manual 1* screwdriver function safety alarm