... and different apparatus. It is used to measure DC current, voltage & AC current, voltage, frequency ... construction. When meter in AC circuit, the coil can bring out a magnet field. The ... , fire control, safe control and teaching instrument Nameprecisionnormal specificationremarkAC ammeterA1.50.5-50Acan be directly ... 35KV100V secondary voltage passed by voltage transformerDC ammeterµA mA2.550μA-500μA 1mA ...