Brennenstuhl EM 231 Energy Meter

The product shown is a digital energy consumption meter, specifically the Brennenstuhl EM 231 (or a functionally identical OEM version). This device is designed to be plugged into a standard European socket to measure various electrical parameters of connected appliances, such as voltage, frequency, current, and wattage. It also allows users to input electricity tariffs to calculate total energy costs over time.

Brennenstuhl is a prominent German brand specializing in electronics and power distribution. While the brand originates from Germany, its products, including this energy meter, are typically manufactured in China to maintain competitive pricing. The ownership of the brand and company remains with the Brennenstuhl family, maintaining its status as a medium-sized German enterprise with international operations.