| 摘要 |
PURPOSE: A power meter is provided to have useful effectiveness on energy-saving by leading to energy-saving in common use by monitoring and alarming real time electric energy use by converting and displaying accumulated electric power use into retail price. CONSTITUTION: A power meter includes a display unit (100), a program (200) calculating and correcting inputted data and converting into price, an internal timer (300) transceiving a signal with the program, a hook (9) installed in one side of the display unit and inputting used electric power and a speaker (4) installed in the other side. |
