External Shunt FL-2 50A 100A 200A 300A 75mV Current Meter Shunt Resister for Digital Voltmeter Ammeter Wattmeter Meter
https://www.vogueparade.com/shopping/EN/1537/3/1005003739863808/external-shunt-fl-2-50a-100a-200a-300a-75mv-current-meter-shunt-resister-for-digital-voltmeter-ammeter-wattmeter-meter//