Keysight E4980AL Precision LCR Meter (20 Hz to 300 kHz / 500 kHz / 1 MHz) The Keysight E4980AL precision LCR meter delivers the measurement performance, speed, and versatility required for component and material evaluation in R&D and production lines. With a basic accuracy of 0.05%, a wide 20 Hz to 1 MHz frequency range, and fast 5.6 ms measurement speed, the E4980AL is the go-to bench instrument for reliable impedance testing of capacitors, inductors, resistors, transformers