The ET4501 LCR Meter is a high-precision instrument designed for comprehensive component analysis, offering 10 selectable test frequencies from 10Hz to 10kHz to accommodate diverse applications. Featuring a 3.5” TFT LCD screen, it displays primary parameters (L/C/R/Z) and secondary parameters (X/D/Q/θ/ESR) with dual 5-digit resolution, ensuring unparalleled accuracy. Its wide measurement ranges cover inductance (0.001µH–9999H), capacitance (0.001pF–99.999mF), and resistance (0.0001Ω–99.99MΩ), backed by a 0.1% basic accuracy for capacitance testing. Engineered for efficiency, the ET4501 delivers adjustable measurement speeds (2/4/8 readings per second) and customizable test conditions, including six fixed voltage levels (0.1V–2V) and internal DC bias (0–1500mV, adjustable in 1mV increments). Dual output impedance options (30Ω/100Ω) enhance flexibility for varied testing scenarios. Advanced calibration tools—open/short compensation—ensure reliable results, while the integrated sorting function allows customizable tolerance limits (-50% to +50%) with preset points (1%, 5%, 10%, 20%) for rapid quality assessment. With a 5-group comparator for pass/fail categorization and auxiliary settings, the ET4501 streamlines batch testing in industrial or lab environments. Its rugged design, intuitive interface, and precision make it indispensable for engineers, technicians, and manufacturers demanding accuracy and speed.