[Energy saving - Environmental protection] This electricity meter measures the power in watts and power consumption in KW -. This power consumption meter has the course graphic of the past few days/weeks/months of daily consumption. It shows the costs for the operation of the device and helps you to reduce electricity bill and carbon dioxide emissions by monitoring and control of electricity consumption. [Comprehensive monitoring] This current measuring device shows volt, electricity in amates, power in watts, frequency and performance factor, the total costs, the tariff or electrical rate, carbon dioxide information, the expired time and the overall used kWh. It offers simple tariff or double tariff to fill out different needs for energy cost measurement. [Multiple protection] certified | Electrical voltage 230V AC 50Hz | Maximum current: 16 amp | Maximum performance: 3680 W. If the current load performance exceeds the previously set overload parameter, the "Overload" display is constantly flashing for overload warning to offer your family additional protection. Please note that you only use in dry conditions. [Memory function] This power meter for socket fits 1.5V LR44/AG13 battery (no battery included). If you need memory function, you need to insert 2x1.5V (LR44/AG13) batteries so that the data is saved when the measuring device is separated from the current or a power failure occurs. [Back lighting function] Connect the device to the AC power network, the backlight lights up immediately if you do not press a button, the backlight goes out after 10 minutes (the backlight only lights up if the device is connected to the AC power network.) Plug Type:EU Plug,it applies to Indonesia, Germany, France, , Italy and so on Voltage: AC100-240V Colour:White Material:plastic Package Contents: 1 x Watt Meter Power Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.