True RMS current clamp The NI 349PR is a very sturdy, high quality and multifunctional True RMS current clamp with a huge measuring range. This clamp can measure AC current up to 2100 A and DC current up to 2500 A. Whether you are a demanding user or just want to make a simple measurement, with the easy to use rotary switch you are able to make this measurement.Features of the NI 349PR: Power Min – max hold Temperature Com output Relative measuring Continuity Including: Test leads Thermocouple type