Electric energy meter-measure and calculate the energy consumption and cost of your connected equipment, effectively help save electricity bills and money, and make that the socket has a shutdown protection function. Even if you unplug the device from the socket, your measurement values and measurement will be saved. -energy monitoring/power consumption meter/energy cost meter. Monitor time, voltage, active power, energy cost, etc. Suitable for various devices-such as computers, game consoles, printers, , set-top boxes, routers, hi-fi , DVD/Blu-ray players or, for example, espresso machines. Reliably determine the power consumption of home and office electronic equipment Digital LCD screen-simple operation with 2 buttons, can display various data, measure and calculate energy consumption (0.00-9,999.9 kWh), active power (0.1-3,680 ), power supply voltage (200-276 volts) and energy costs (0.00-99.99) Euro) Plug Type:EU Plug,it applies to Indonesia, , , , and so on Colour:White :plastic Package Contents: 2 x smart billing socket 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.