Best Wall Outlet Power Meter can be customized to meet the standards of Germany, Britain, Australia, the United States, France, Italy, Israel, Belgium, Denmark, South Africa, Brazil and other countries Built in rechargeable battery backup, wattmeter power analyzer can save data for up to 90 days in case of power failure or unplugging the instrument from the socket; All data, including cost settings, can reach zero once the reset button is pressed. Power Meter is a monitoring and testing instrument which determines the power consumption of a connected appliance and the cost of the electricity consumed. Built-in 3.6V rechargeable Batteries. The purpose of the batteries is to store the total electricity and memory setting Resetting If an abnormal display appears or the buttons produce no response, the instrument must be reset. To do this, press the…