This power usage monitor allows to set two rates. Dual tariffs are usually used in billing areas with different billing rates. The power consumption per cycle can be calculated more accurately. Conducive to the power supply of future homes. This energy meter can measure and display 7 kinds of power (w), energy (kWh), current (A), voltage (V), frequency (Hz), carbon dioxide emissions (KgCO2), power factor, cost, Max Power, etc. The energy monitoring plugs of the above modes are available for you to choose. Ideal for monitoring energy in appliances Real-time monitoring and data analysis Monitor the real-time power consumption, current and electricity bills of your electrical equipment. Save money and energy by analyzing daily/week/month consumption data. Please fully charge the rechargeable battery inside the device before use. Billing socket power monitor one British Products can meet Germany, Britain, Australia, the United States, France, Italy, Israel, Belgium, Denmark, South Africa, Brazil Customized according to different national standards