Keysight E4980B Precision LCR Meter (20 Hz to 2 MHz) The Keysight E4980B precision LCR meter is the current-generation bench instrument for accurate, repeatable impedance measurement of capacitors, inductors, resistors, transformers, and semiconductor components. Combining 0.05% basic accuracy, a wide 20 Hz to 2 MHz frequency range, and fast 5.6 ms measurement speed, the E4980B answers the demanding test needs of both R&D laboratories and high-throughput production lines. Key