# T-213 Transformer Winding DC Resistance Tester The T-213 is a precision portable instrument for measuring DC resistance in transformer windings, motors, reactors, and inductive equipment. Employing four-wire measurement technology, it eliminates lead resistance for superior accuracy across a 1mΩ to 20kΩ range. Six selectable current outputs (10mA to 20A) accommodate diverse load profiles, while 0.1% to 0.2% accuracy with 0.1μΩ resolution meets factory and field maintenance standards. The 5.7-inch bilingual LCD display and compact 7kg design enable efficient diagnostics in production environments and utility operations.