Electrical Accessories or Amperemeter is an electrical measuring instrument used to measure electrical current. The unit of electric current is ampere, so the result indicated by Amperemeter will also produce the result of the unit of ampere. How to use Amperemeter should be used to measure the closing circuit, then how to install it in series / lined with the load. After the Amperemeter is connected to the load then the indicator needle on the ampere meter will show a number which is the result of the measurement obtained.