Voltage Regulator, Transformers, Variac manufacturer / supplier in China, offering Factory Direct 85c1 Type 5V 10V 20V 30V 50V 100V Pointer Display DC Voltage Meter, Wholesale Price 69L17 Series Pointer Display AC Current Meter Voltage Meter 1-100A 0-450V, Wholesale Price Pointer Display DC Current Meter Voltage Meter 1-300A 10-500V and so on.