What is the accuracy of a 4-20mA converter?

AKCPIntelligent Sensors, Support

The accuracy of our 4-20mA converters is 2%. The resolution of our 4-20mA converters is 0.1mA. You can use these figures in conjunction with your sensor?s accuracy to find the overall precision of your readings. You can also calibrate the 4-20mA converter

AKCPWhat is the accuracy of a 4-20mA converter?