This Heavy Duty Current Shunt when placed in series with a high power circuit, will allow you to measure high current draw without needing a high current ammeter. Heavy-duty brass construction and hand calibrated. They include large terminals for connection of the main circuit cables and smaller terminals for connection to a meter.

Using a standard multimeter or panel meter, simply measure the millivolts across the shunt to display the circuit's current draw. The 50mV models in the range are also compatible with many readily available power meters.