... in analog display instrument used to expand with the direct current measuring range, or the shunt attached in circuits can be ... with resistor, its sampling voltage can be regarded as a current measurement in the analog signals.Main technical parameters:1, accuracy ... is more than 95% (35 °C).3, overloaded performance: rated current 120%, 2 hours.4, voltage drop: 50mV60mV70mV100mV5, Giving out heat ...